Run phpcs, php-cs-fixer, phpstan, coverage, versions as Php8.1

[oleibman]

They all run under Php7.4 in Github. 7.4 is EOL. We still have to run unit tests in 7.4, but I think it's time to move the tools. Note that we cannot currently run Phpstan in 8.2 because of phpstan/phpstan#8629.

This is:

• a bugfix
• a new feature
• refactoring
• additional unit tests

Checklist:

• Changes are covered by unit tests
  • Changes are covered by existing unit tests
  • New unit tests have been added
• Code style is respected
• Commit message explains why the change is made (see https://github.com/erlang/otp/wiki/Writing-good-commit-messages)
• CHANGELOG.md contains a short summary of the change and a link to the pull request if applicable
• Documentation is updated as necessary

Why this change is needed?

Provide an explanation of why this change is needed, with links to any Issues (if appropriate).
If this is a bugfix or a new feature, and there are no existing Issues, then please also create an issue that will make it easier to track progress with this PR.

[oleibman]

Hmm, everything worked, except coverage, which has failed twice. Once with no error that I could see, then once, after completing the unit tests, with the following trying to upload its results:

  [Guzzle\Common\Exception\InvalidArgumentException]  
  Invalid handle provided  

I will try it as 8.0 (leave the others at 8.1) and see if that helps.

[oleibman]

Same error for Coverage with Php 8.0. Trying 7.4.

[oleibman]

@MarkBaker @PowerKiKi Any idea why Coverage results upload should fail using Php 8.1/8.0 but succeed with Php 7.4? Message for 8.1/8.0 documented above.

That error notwithstanding, is this change (with or without Coverage change) a bad idea? Good idea? It depends?

[MarkBaker]

@MarkBaker @PowerKiKi Any idea why Coverage results upload should fail using Php 8.1/8.0 but succeed with Php 7.4? Message for 8.1/8.0 documented above.

No idea why the upload should be failing, other than perhaps the underlying version of guzzle or curl.

That error notwithstanding, is this change (with or without Coverage change) a bad idea? Good idea? It depends?

Good idea, because we'll be dropping PHP 7.4 support in a few months time

[MarkBaker]

scrutinizer-ci/ocular#62

[oleibman]

Thank you. It took a couple of tries to get it right, but now appears to be working.