Merge master into feature/fts

[Lloyd-Pottiger]

• pkg/set: convert check to require (check_to_require: set #2557)
• meta: replace pingcap/check with testing (meta: replace pingcap/check with testing #2559)
• embed: replace pingcap/check with testing (check_to_require: embed #2555)
• base52: replace pingcap/check with testing (check_to_require: base52 #2556)
• localdata: replace pingcap/check with testing (check_to_require: localdata #2561)
• utils: replace pingcap/check with testing (check_to_require: utils #2562)
• telemetry: remove (Telemetry removal #2564)
• repo: exclude prerelease version from version list if possible (repo: exclude prerelease version from version list if possible #2550)
• repo: abstract v1repoapi as interface (repo: abstract v1repoapi as interface #2542)
• cluster: also check exporter ports (cluster: also check exporter ports #2563)
• cluster: improve SELinux compatibility (cluster: improve SELinux compatibility #2501)
• cluster: update --ssh desc (Update --ssh desc #2380)
• cluster: add stop/start timeout for systemd service (cluster: add stop/start timeout for systemd service #2568)
• *: move insight to tiup (Move insight to tiup #2553)
• *: check_to_require for cluster (check_to_require: cluster #2566)
• *: update dmpb (Update dmpb #2569)
• *: replace otiai10/copy with os.CopyFS (Replace otiai10/copy with os.CopyFS #2571)
• ci: add staging mirror option to release workflow (ci: add staging mirror option to release workflow #2576)
• ci: fix STAGING version competition (ci: fix STAGING version competition #2579)
• playground: fix config typo (playground: fix config typo #2578)
• ci: add ci for feature branch (ci: add ci for feature branch #2577)
• ci: fix staging version string (ci: fix staging version string #2582)
• playground: add tici component in playground (add tici component in playground #2546)
• tici: Update the default config filename & default port of tici (tici: Update the default config filename & default port of tici #2567)
• tici: refine binpath (tici: refine binpath #2572)
• tici: read bucket and prefix from config file to create changefeed (tici: read bucket and prefix from config file to create changefeed #2573)
• playground: make the tici changefeed endpoint configurable (playground: make the tici changefeed endpoint configurable #2581)
• *: support start a TiDB playground cluster with TiCI without any self-defined binarys or configurations (*: support start a TiDB playground cluster with TiCI without any self-defined binarys or configurations #2583)

What problem does this PR solve?

close #xxx

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release notes:

NONE

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-08-14 07:57:50.319018337 +0000 UTC m=+513469.353601566: ☑️ agreed by xhebox.