comet 0.38 update

[tzemanovic]

Describe your changes

• related to #4156
• requires CI update (https://github.com/heliaxdev/namada-ci/pull/32)

Checklist before merging

• [ ] If this PR has some consensus breaking changes, I added the corresponding breaking:: labels
  • This will require 2 reviewers to approve the changes
• [ ] If this PR requires changes to the docs or specs, a corresponding PR is opened in the namada-docs repo
  • Relevant PR if applies:
• [x] If this PR affects services such as namada-indexer or namada-masp-indexer, a corresponding PR is opened in that repo
  • Relevant PR if applies:
    • https://github.com/namada-net/namada-indexer/pull/436
    • https://github.com/namada-net/namada-masp-indexer/pull/108