Bump kachick/selfup from 1.1.7 to 1.1.8

Bumps [kachick/selfup](https://github.com/kachick/selfup) from 1.1.7 to 1.1.8.
- [Release notes](https://github.com/kachick/selfup/releases)
- [Changelog](https://github.com/kachick/selfup/blob/main/.goreleaser.yaml)
- [Commits](kachick/selfup@6955f98...ecb1588)

---
updated-dependencies:
- dependency-name: kachick/selfup
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/bump-flake-lock-and-selfup.yml

@@ -12,7 +12,7 @@ on:
 
 jobs:
   bump:
-    uses: kachick/selfup/.github/workflows/reusable-bump-flake-lock-and-selfup.yml@6955f98516ff63b945b445ecaeb3b5a4849be4cc # v1.1.7
+    uses: kachick/selfup/.github/workflows/reusable-bump-flake-lock-and-selfup.yml@ecb158813e7ade0a2e9b88b186460d052a906f20 # v1.1.8
     with:
       app_id: ${{ vars.APP_ID }}
       dry-run: ${{ github.event_name == 'pull_request' }}