chore(release): v1.20.0

[CybotTM]

Release v1.20.0.

[gemini-code-assist]

Code Review

This pull request updates the version of the php-modernization plugin and skill from 1.19.2 to 1.20.0 in both .claude-plugin/plugin.json and skills/php-modernization/SKILL.md. There are no review comments, and I have no feedback to provide.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[Copilot]

Pull request overview

Release bump to v1.20.0, updating the skill and plugin manifests so downstream tooling reports the correct release version.

Changes:

• Update skills/php-modernization/SKILL.md metadata version to 1.20.0.
• Update .claude-plugin/plugin.json version to 1.20.0.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
skills/php-modernization/SKILL.md	Bumps skill metadata version to 1.20.0 for the release.
.claude-plugin/plugin.json	Bumps plugin manifest version to 1.20.0 for the release.

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