chore: install buildx for e2e image and bump Golang version

[csuzhangxc]

What problem does this PR solve?

What is changed and how does it work?

Code changes

• Has Go code change
• Has CI related scripts change

Tests

• Unit test
• E2E test
• Manual test
• No code

Side effects

• Breaking backward compatibility
• Other side effects:

Related changes

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

Release Notes

Please refer to Release Notes Language Style Guide before writing the release note.

[ti-chi-bot]

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.96%. Comparing base (a16b2e8) to head (288d64c).
Report is 16 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5987      +/-   ##
==========================================
- Coverage   57.19%   56.96%   -0.24%     
==========================================
  Files         259      260       +1     
  Lines       33233    45033   +11800     
==========================================
+ Hits        19008    25653    +6645     
- Misses      12291    17392    +5101     
- Partials     1934     1988      +54     

Flag	Coverage Δ
unittest	56.96% <ø> (-0.24%)	⬇️

[csuzhangxc]

/run-pull-e2e-kind-basic