Pre-Colombian Version Bumps

[faddat]

• Go and tendermint versions
  go 1.17 (clearer go.mod)
  tendermint 0.34.13 (tendermint <-> posgres <-> hasura graphQL)
• IBC 1.2.0

Summary of changes

Simple version bumps that should be useful before the release of Colombus.

Report of required housekeeping

• Github issue OR spec proposal link
• Wrote tests
• Updated API documentation (client/lcd/swagger-ui/swagger.yaml)
• Added a relevant changelog entry: clog add [section] [stanza] [message]

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(FOR ADMIN) Before merging

• Added appropriate labels to PR
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)
• Confirm added tests are consistent with the intended behavior of changes
• Ensure all tests pass

[yun-yeo]

Thanks for PR @faddat

but ibc-go 1.2.0 has some breaking changes, so we need to consider it later.
I will put your go.mod convention in other PR #546 .

If you don't mind, I will close the PR.