Reject invalid `Requires at least` header values (#392)

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Update package requirements

Fix tests involving WordPress 7.0 (#386)

Update file(s) from wp-cli/.github

Tests: Improve Windows compatibility (#382)

Add .gitattributes file

See wp-cli/wp-cli#5070

Merge pull request #370 from wp-cli/fix-phpstan

Merge pull request #360 from wp-cli/fix/trunk-tests

Fix test involving WordPress trunk

Merge pull request #355 from wp-cli/fix/tests

Fix tests for Hello Dolly

Merge pull request #351 from wp-cli/refine-feature-files