[skip] resolve grcp-proxy repeated payload trunc problem & update deps and Go version.

[kpango]

Signed-off-by: kpango kpango@vdaas.org

Description

This PR is the workaround before this problem is resolved. As a workaround, this PR locks grpc-proxy dependencies to old commits and updates some vulnerable dependencies that are detected in snyk.

Type of change

• [x] Bug fix
• [ ] New feature
• [x] Refactoring (no functional changes, no api changes)
• [ ] Non-code changes (update documentation, pipeline, etc.)

Flags

• [ ] breaks backward compatibility
• [x] requires a documentation update
• [ ] has untestable code

Related issue/PR

Delete if not applicable

• Fixes #issue
• Closes #PR

---

Checklist

• [x] Followed the guidelines in the CONTRIBUTING document
• [x] Added prefix [major]/[minor]/[patch]/[skip] in the PR title
• [x] Tested and linted the code
• [ ] Commented the code
• [x] Made corresponding changes to the documentation
• [x] Confirmed no dropping in test coverage (by Codecov)
• [x] Passed all pipeline checking
• [ ] Approved by >1 reviewer

Checklist for maintainer

• [ ] Use Squash and merge
• [ ] Double-confirm the merge message has prefix [major]/[minor]/[patch]/[skip]
• [ ] Delete the branch after merge