Avoid using set-output in GitHub Actions

[zorgiepoo]

Fixes #2354

Misc Checklist

• My change requires a documentation update on Sparkle's website repository
• My change requires changes to generate_appcast, generate_keys, or sign_update

Only bug fixes to regressions or security fixes are being backported to the 1.x (master) branch now. If you believe your change is significant enough to backport, please also create a separate pull request against the master branch.

Testing

I tested and verified my change by using one or multiple of these methods:

• Sparkle Test App
• Unit Tests
• My own app
• Other (please specify)

Testing this in CI and seeing if an analyzer warning gets triggered.

[Sparkle-Bot]

[Sparkle-Bot]

        NSMutableArray *arguments = [@[@"attach", _archivePath, @"-mountpoint", mountPoint, /*@"-noverify",*/ @"-nobrowse", @"-noautoopen"] mutableCopy];
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
note: Building targets in dependency order
note: Target dependency graph (9 targets)
    Target 'Sparkle' in project 'Sparkle'
        ➜ Explicit dependency on target 'SparkleDownloader' in project 'Sparkle'
        ➜ Explicit dependency on target 'SparkleInstallerConnection' in project 'Sparkle'
        ➜ Explicit dependency on target 'SparkleInstallerLauncher' in project 'Sparkle'
        ➜ Explicit dependency on target 'SparkleInstallerStatus' in project 'Sparkle'
        ➜ Explicit dependency on target 'Autoupdate' in project 'Sparkle'
        ➜ Explicit dependency on target 'Installer Progress' in project 'Sparkle'
    Target 'Installer Progress' in project 'Sparkle' (no dependencies)
    Target 'Autoupdate' in project 'Sparkle'
        ➜ Explicit dependency on target 'bsdiff' in project 'Sparkle'
        ➜ Explicit dependency on target 'ed25519' in project 'Sparkle'
    Target 'ed25519' in project 'Sparkle' (no dependencies)
    Target 'bsdiff' in project 'Sparkle' (no dependencies)
    Target 'SparkleInstallerStatus' in project 'Sparkle' (no dependencies)
    Target 'SparkleInstallerLauncher' in project 'Sparkle' (no dependencies)
    Target 'SparkleInstallerConnection' in project 'Sparkle' (no dependencies)
    Target 'SparkleDownloader' in project 'Sparkle' (no dependencies)
note: Run script build phase 'Strip Framework' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle')
note: Run script build phase 'Run Script: Set Git Version Info' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle')
note: Run script build phase 'Run Script: Link Tools' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle') ```

[Sparkle-Bot]

$(cat anaylze_output.txt)

[Sparkle-Bot]

        NSMutableArray *arguments =   [@[@"attach", _archivePath, @"-mountpoint", mountPoint, /*@"-noverify",*/ @"-nobrowse", @"-noautoopen"] mutableCopy];
                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
note: Building targets in dependency order
note: Target dependency graph (9 targets)
    Target 'Sparkle' in project 'Sparkle'
        ➜ Explicit dependency on target 'SparkleDownloader' in project 'Sparkle'
        ➜ Explicit dependency on target 'SparkleInstallerConnection' in project 'Sparkle'
        ➜ Explicit dependency on target 'SparkleInstallerLauncher' in project 'Sparkle'
        ➜ Explicit dependency on target 'SparkleInstallerStatus' in project 'Sparkle'
        ➜ Explicit dependency on target 'Autoupdate' in project 'Sparkle'
        ➜ Explicit dependency on target 'Installer Progress' in project 'Sparkle'
    Target 'Installer Progress' in project 'Sparkle' (no dependencies)
    Target 'Autoupdate' in project 'Sparkle'
        ➜ Explicit dependency on target 'bsdiff' in project 'Sparkle'
        ➜ Explicit dependency on target 'ed25519' in project 'Sparkle'
    Target 'ed25519' in project 'Sparkle' (no dependencies)
    Target 'bsdiff' in project 'Sparkle' (no dependencies)
    Target 'SparkleInstallerStatus' in project 'Sparkle' (no dependencies)
    Target 'SparkleInstallerLauncher' in project 'Sparkle' (no dependencies)
    Target 'SparkleInstallerConnection' in project 'Sparkle' (no dependencies)
    Target 'SparkleDownloader' in project 'Sparkle' (no dependencies)
note: Run script build phase 'Strip Framework' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle')
note: Run script build phase 'Run Script: Set Git Version Info' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle')
note: Run script build phase 'Run Script: Link Tools' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle') ```

[Sparkle-Bot]

/Users/runner/work/Sparkle/Sparkle/Autoupdate/SUDiskImageUnarchiver.m:83:41: warning: Array element cannot be nil [osx.cocoa.NilArg] NSMutableArray *arguments = [@[@"attach", _archivePath, @"-mountpoint", mountPoint, /*@"-noverify",*/ @"-nobrowse", @"-noautoopen"] mutableCopy]; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. note: Building targets in dependency order note: Target dependency graph (9 targets) Target 'Sparkle' in project 'Sparkle' ➜ Explicit dependency on target 'SparkleDownloader' in project 'Sparkle' ➜ Explicit dependency on target 'SparkleInstallerConnection' in project 'Sparkle' ➜ Explicit dependency on target 'SparkleInstallerLauncher' in project 'Sparkle' ➜ Explicit dependency on target 'SparkleInstallerStatus' in project 'Sparkle' ➜ Explicit dependency on target 'Autoupdate' in project 'Sparkle' ➜ Explicit dependency on target 'Installer Progress' in project 'Sparkle' Target 'Installer Progress' in project 'Sparkle' (no dependencies) Target 'Autoupdate' in project 'Sparkle' ➜ Explicit dependency on target 'bsdiff' in project 'Sparkle' ➜ Explicit dependency on target 'ed25519' in project 'Sparkle' Target 'ed25519' in project 'Sparkle' (no dependencies) Target 'bsdiff' in project 'Sparkle' (no dependencies) Target 'SparkleInstallerStatus' in project 'Sparkle' (no dependencies) Target 'SparkleInstallerLauncher' in project 'Sparkle' (no dependencies) Target 'SparkleInstallerConnection' in project 'Sparkle' (no dependencies) Target 'SparkleDownloader' in project 'Sparkle' (no dependencies) note: Run script build phase 'Strip Framework' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle') note: Run script build phase 'Run Script: Set Git Version Info' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle') note: Run script build phase 'Run Script: Link Tools' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Sparkle' from project 'Sparkle')