[travis] Encrypt access key ID in travis yml file

[Zyiqin-Miranda]

Why are these changes needed?

This PR adds encryption to access key ID in travis yml file.

Related issue number

Checks

• [x] I'm working against the latest source on the experimental branch.
• [ ] I've run scripts/format.sh to lint the changes in this PR.
• [ ] I've included any doc changes needed.
• [ ] I've made sure the tests are passing. Note that there might be a few flaky tests.
• Testing Strategy
  • [ ] Unit tests
  • [ ] Release tests
  • [ ] This PR is not tested :(

License

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[pdames]

Thanks! The changes look good but, before merging , can you rebase on top of the latest commit from the experimental branch, and change the merge target branch for this PR from main to experimental?

[Zyiqin-Miranda]

Thanks! The changes look good but, before merging , can you rebase on top of the latest commit from the experimental branch, and change the merge target branch for this PR from main to experimental?

Thanks Patrick, changed target branch and rebased on top of latest commit