deps: bump cosmos-sdk to v0.50.9 (backport #6828)

[mergify]

Description

closes: #6822 #6825 #6827 #6826 #6824 #6823

---

Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• Targeted PR against the correct branch (see CONTRIBUTING.md).
• Linked to GitHub issue with discussion and accepted design, OR link to spec that describes this work.
• Code follows the module structure standards and Go style guide.
• Wrote unit and integration tests.
• Updated relevant documentation (docs/).
• Added relevant godoc comments.
• Provide a conventional commit message to follow the repository standards.
• Include a descriptive changelog entry when appropriate. This may be left to the discretion of the PR reviewers. (e.g. chores should be omitted from changelog)
• Re-reviewed Files changed in the GitHub PR explorer.
• Review SonarCloud Report in the comment section below once CI passes.

---

This is an automatic backport of pull request #6828 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 3425726 has failed:

On branch mergify/bp/release/v9.0.x/pr-6828
Your branch is up to date with 'origin/release/v9.0.x'.

You are currently cherry-picking commit 3425726a.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   CHANGELOG.md
	modified:   go.mod
	modified:   go.sum
	modified:   modules/apps/callbacks/CHANGELOG.md
	modified:   modules/apps/callbacks/go.mod
	modified:   modules/apps/callbacks/go.sum
	modified:   modules/capability/CHANGELOG.md
	modified:   modules/capability/go.mod
	modified:   modules/capability/go.sum
	modified:   modules/light-clients/08-wasm/go.mod
	modified:   modules/light-clients/08-wasm/go.sum
	modified:   simapp/go.mod
	modified:   simapp/go.sum

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   e2e/go.mod
	deleted by us:   e2e/go.sum
	both modified:   modules/light-clients/08-wasm/CHANGELOG.md

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[sonarcloud]

Quality Gate passed for 'ibc-go'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[colin-axner]

Thanks @DimitrisJim!