PHPStan: Drop the booleanAnd.alwaysFalse ignore, unused since 2.2.6

[landsman]

CI is currently red on main itself, not just on pull requests:

Ignored error pattern booleanAnd.alwaysFalse was not matched in reported errors.
[ERROR] Found 1 error

No code reports booleanAnd.alwaysFalse any more, so the ignore in conf/phpstan.neon is unmatched and reportUnmatchedIgnoredErrors (on by default) fails the run.

Bisected against an unmodified checkout of 29623c3, same config, PHP 8.4:

PHPStan	Result
2.2.5	[OK] No errors
2.2.6	[ERROR] Found 1 error
2.2.7	[ERROR] Found 1 error

With this line dropped, 2.2.7 gives [OK] No errors.

Nothing was committed to break it — php-actions/phpstan@v3 is used with version: latest, so the new PHPStan arrived on its own. Worth noting the workflow only triggers on pull_request and workflow_dispatch, so a red main is invisible until someone opens a PR.

If you would rather this could not happen again, pinning the PHPStan version in .github/workflows/ci.yml would do it, but that is your call and not in this change.

[vrana]

Thanks, I've also pinned PHPStan to 2.2.7 so that this doesn't happen in the future.