chore(ci): skip pull_request runs for release-please output-only PRs

[kunchenguid]

Summary

Prevent normal PR CI from being created for axi-sdk-js release-please PRs (Shape E).

release-please opens its release PR with GITHUB_TOKEN, which creates pull_request runs that can only sit in action_required. This change excludes the exact axi-sdk-js release-output set from every pull_request trigger so those PRs create zero runs.

Changes

• axi-sdk-js-ci.yml: append ordered negative paths patterns after the positive allow-list (cannot combine paths with paths-ignore). Does not negate root package.json.
• guard-generated-files.yml and no-mistakes-required.yml: add paths-ignore for the release-output set. Keep existing bot author if conditions as defense in depth.
• docs-check.yml: unchanged (existing allow-list already skips release PRs).
• Add config-derived drift test packages/axi-sdk-js/test/release-ci-exclusions.test.ts.

Release-output set

• .release-please-manifest.json
• packages/axi-sdk-js/CHANGELOG.md
• packages/axi-sdk-js/package.json
• packages/axi-sdk-js/package-lock.json (defensive; not present under pnpm)

Validation

• YAML parse of edited workflows
• Focused drift tests (127 package tests pass)
• Offline file-list simulation: release-only paths create no PR runs; ordinary SDK/root changes still do

Notes

• Direct-PR delivery per captain override for the release-please CI rollout. A red no-mistakes-required check is expected on this PR.
• Commit type is chore(ci) so release-please does not cut a release from this maintenance patch.
• Do not merge any generated release PR as part of this work.