Migrate Renovate config

[pguyot]

The Renovate config in this repository needs migrating. Typically this is because one or more configuration options you are using have been renamed.

You don't need to merge this PR right away, because Renovate will continue to migrate these fields internally each time it runs. But later some of these fields may be fully deprecated and the migrations removed. So it's a good idea to merge this migration PR soon.

🔕 Ignore: Close this PR and you won't be reminded about config migration again, but one day your current config may no longer be valid.

❓ Got questions? Does something look wrong to you? Please don't hesitate to request help here.

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This PR has been generated by Renovate Bot.

Summary by CodeRabbit

• Chores
  • Updated dependency management configuration to use revised pattern matching syntax for improved dependency tracking and automation.

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

📝 Walkthrough

Walkthrough

Configuration update to renovate.json replacing fileMatch regex arrays with managerFilePatterns across multiple custom managers for CMake and GitHub workflow files. STM32 package matching logic transitions from matchPackagePatterns to matchPackageNames, with removal of redundant packageName fields in two rule entries.

Changes

Cohort / File(s)	Summary
Renovate Configuration Updates renovate.json	Replaced fileMatch with managerFilePatterns in custom managers for CMake files (FetchMbedTLS.cmake, FetchUnity.cmake, stm32_sdk.cmake, picolibc.cmake) and GitHub workflow files. Updated STM32 grouping logic from matchPackagePatterns to matchPackageNames with equivalent regex matchers, and removed explicit packageName fields from two STM32 "u3" package rule entries.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐰 A rabbit hops through config fields so neat,
Where patterns dance and package names compete,
fileMatch fades, managerFilePatterns takes the stage,
Renovate grows wise with each updated page! 🌱✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The pull request description is auto-generated by Renovate and explains the migration purpose, but does not include the required license identifier statement specified in the repository's description template.	Add the required license identifier section with 'SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later' to the pull request description as specified in the template.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Migrate Renovate config' is concise and directly related to the main change, which involves migrating deprecated Renovate configuration options.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch renovate/migrate-config

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