misc: Update devcontainer

[breezewish]

What problem does this PR solve?

Issue Number: ref #6233

Problem Summary:

What is changed and how it works?

Update TiFlash devcontainer to use latest build infrastructure.

Currently it may be not friendly for users that cannot access hub.pingcap.net. I hope some alternative way could be provided later.

Check List

Tests

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

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JaySon-Huang, Lloyd-Pottiger

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Needs approval from an approver in each of these files:

• OWNERS [JaySon-Huang,Lloyd-Pottiger]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-04 15:23:14.972912829 +0000 UTC m=+1254782.592567341: ☑️ agreed by Lloyd-Pottiger.
• 2024-12-04 15:55:42.219228175 +0000 UTC m=+1256729.838882691: ☑️ agreed by JaySon-Huang.