Remove bors and use GitHub merge queue

[curquiza]

Ruleset set up for the usage of GitHub merge queue ✅

Summary by CodeRabbit

• Chores
  • Updated CI workflow triggers to remove deprecated branches and add merge-queue support.
  • Sanitized release-draft template bot mentions to target Dependabot variants and remove older bot references.
  • Simplified contribution guidelines by removing branch sync/rebase automation guidance.
  • Removed legacy integration/bot status badges from project documentation.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

Replaced Bors/Meili bot mentions with Dependabot-related targets in the release draft template, adjusted workflow push triggers (removed "trying" and "staging", added top-level merge_group), and removed Bors-related guidance and badges from contributing and README files.

Changes

Cohort / File(s)	Summary
Release template \.github/release-draft-template.yml	Updated replacer entries: @bors → @dependabot-preview, @meili-bot → @dependabot, and @meili-bors → @meili-bot (swap).
Workflows \.github/workflows/tests.yml	Removed push branches trying and staging; kept main; added top-level merge_group trigger under push.
Documentation CONTRIBUTING.md, README.md, README.tpl	Removed Bors-related guidance and automation section from CONTRIBUTING.md; deleted Bors-enabled badge lines from README and README.tpl; minor formatting adjustments.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

• Review focus: \.github/release-draft-template.yml replacer patterns and intended bot targets.
• Confirm workflow trigger intent in \.github/workflows/tests.yml (removed branches, added merge_group).
• Validate removed CONTRIBUTING.md section and README badge lines for accuracy.

Poem

🐰 I nudged old Bors from the nest,
Swapped mentions for Dependabot's best,
Workflows trimmed, the docs made neat,
Small hops forward, light on their feet —
Carrots for CI, and a cozy rest 🥕

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: removing Bors integration and transitioning to GitHub's merge queue, which aligns with modifications across release templates, workflows, documentation, and configuration files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch remove-bors

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between c39bfd4 and 7bfb2bb.

📒 Files selected for processing (4)

• .github/release-draft-template.yml (1 hunks)
• .github/workflows/tests.yml (1 hunks)
• README.md (0 hunks)
• README.tpl (0 hunks)

💤 Files with no reviewable changes (2)

• README.tpl
• README.md

🚧 Files skipped from review as they are similar to previous changes (2)

• .github/release-draft-template.yml
• .github/workflows/tests.yml

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: integration-tests

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