Cargo.toml: Fix h2 cargo deny issue.

[afeinberg]

What is changed and how it works?

Issue Number: Close #16768

What's Changed:

Update h2 to 0.3.26

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• Need to cherry-pick to the release branch

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

make clippy

• No code

Side effects

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

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• bufferflies
• tonyxuqqi

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[afeinberg]

/assign @tonyxuqqi

[afeinberg]

/cc @tonyxuqqi @v01dstar

[afeinberg]

Could someone do a /merge? /cc @bufferflies @Connor1996

[bufferflies]

/merge

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This pull request has been accepted and is ready to merge.

Commit hash: 57a0928