Updated README.md with packages versions

[AlexSkrypnyk]

This PR updates the "Included packages" section in README.md with the latest package versions from the Docker image.

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Summary by CodeRabbit

• Documentation
  • Updated documented PHP version from 8.4.19 to 8.4.20.

[coderabbitai]

Caution

Review failed

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: e646bed4-94b1-4008-ba15-bd21e0be1d25

📥 Commits

Reviewing files that changed from the base of the PR and between 469654c and 78cd7d6.

📒 Files selected for processing (1)

• README.md

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📝 Walkthrough

Walkthrough

Updated the documented PHP version in README.md from 8.4.19 to 8.4.20 in the "Included packages" section and added trailing blank lines.

Changes

Cohort / File(s)	Summary
Documentation Update README.md	Updated PHP version from 8.4.19 to 8.4.20 in the "Included packages" list; added trailing blank lines.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• Updated README.md with packages versions #325: Both PRs bump the documented PHP version in README.md "Included packages" section (8.4.18→8.4.19 in #325, 8.4.19→8.4.20 in this PR) and add trailing blank lines.
• Updated README.md with packages versions #347: Both PRs modify README.md's "Included packages" section to update PHP version and add blank-line changes.
• Updated README.md with packages versions #333: Both PRs update README.md's "Included packages" versions and add trailing blank lines.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/update-readme-versions

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