Run PHP coding standards when dependencies change

[triple0t]

Changes proposed in this Pull Request:

The PHP coding standards job only runs when a **.php file changes. That leaves a gap: a pull request that changes the project's dependencies is never linted, even though dependencies are what supply the coding standards themselves.

This is not hypothetical. The recent WPCS 3.4.1 update (GHSA-3pwp-g2mj-5p3v) touched composer.lock only. It replaced the entire coding-standards ruleset and no lint job ran on it.

This adds composer.json and composer.lock to the filter.

This repo gates differently from its siblings: pull_request has no paths filter, and the phpcs job is instead gated on a dorny/paths-filter step carrying the same **.php list. The effect was identical — a composer.lock-only PR skipped the job — so both the push paths block and the filters block are updated.

Detailed test instructions:

This changes when the workflow fires, not what it does, so the check is behavioural:

1. Confirm the workflow still parses — GitHub rejects invalid YAML, so a green Actions tab here is the first signal.
2. On this PR the job should run: it edits .github/workflows/php-coding-standards.yml, which was already in the filter.
3. To prove the new behaviour, push a commit here changing only composer.lock (a whitespace edit is enough) and confirm the job still triggers. Before this change it would not have.
4. Confirm nothing else changed: the diff should be four added lines, two per trigger.

Additional details:

No change to what phpcs does or which rules apply — only to when the job is triggered. The cost is that dependency-only pull requests now run one extra short job.

An earlier version of this PR also added phpcs.xml.dist to the filter. That is pulled out and left for a separate discussion: changing the lint config can surface pre-existing violations across the whole tree, and that deserves its own decision rather than riding along here.

Changelog entry

Dev - Run the PHP coding standards job when dependencies change.

[coderabbitai]

Important

Review skipped

Review was skipped due to path filters

⛔ Files ignored due to path filters (1)

• .github/workflows/php-coding-standards.yml is excluded by none and included by none

CodeRabbit blocks several paths by default. You can override this behavior by explicitly including those paths in the path filters. For example, including **/dist/** will override the default block on the dist directory, by removing the pattern from both the lists.

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Run ID: 03cb38e6-d9d8-40fa-b13f-c9495f02ddae

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update/phpcs-workflow-trigger-paths

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