Update go-xcode/v2 and wire in automatic signing style export options

[godrei]

Checklist

• I've read and followed the Contribution Guidelines
• step.yml and README.md is updated with the changes (if needed)

Version

Requires a PATCH version update

Context

This PR updates the go-xcode/v2 dependency and wires in exportOptions.plist generation for automatic code signing style.

[mtx-tnguyen]

Hey there, since the update of the step, we got the following error:

Failed to execute Step main logic: failed to archive the project: command failed with exit status 65 (set -o pipefail && xcodebuild "archive" "-workspace" "/Users/[REDACTED]/git/ios/meilleurtaux.xcworkspace" "-scheme" "preprod" "-configuration" "preprodRelease" "-xcconfig" "/var/folders/yy/6kcn9mkd5svdbqnznwf474f00000gn/T/52466558/temp.xcconfig" "-archivePath" "/var/folders/yy/6kcn9mkd5svdbqnznwf474f00000gn/T/xcodeArchive2430447478/MTX PREPROD.xcarchive" "-destination" "generic/platform=iOS" | xcpretty): error: Could not get GOOGLE_APP_ID in Google Services file from build environment (exit code: 1)

We changed nothing since yesterday, we just got these errors on every build since this morning, and I only just thought about checking for changelogs, and got the good surprise of finding only one update on the step that is now failing ^^

Should I open an issue on that?