chore: Promote annotations @before and @beforeClass to attributes (#175)

* chore: Promote annotations @before and @beforeClass to attributes

* Solve own deprecations. Update test matrix for CI

* Update matrix to reflect the fact that PHPUnit11 cannot run on PHP 8.1

* Reinstate docblock, now properly parametrized

* Modify phpstan-baseline to reflect 1 less error in codebase

chore: (bc) Update PHP and PHPUnit minimum version requirements (#164)

* chore: (bc) Update PHP and PHPUnit minimum version requirements

- Use attributes to handle what was previously handled through annotations

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Co-authored-by: Ilario Pierbattista <[email protected]>

Update changelog for release

Updated changelog for version 0.12.1

Update changelog and readme for 0.12.0 (#140)

Prepare ChangeLog for release

Prepare 0.10 release