Bump spring-io/spring-github-workflows (#427)

Bumps [spring-io/spring-github-workflows](https://github.com/spring-io/spring-github-workflows) from aa731be83dce7009d369a49606cc150741894a55 to 771879da6435166bca602827c9f0945dd94c7fd7.
- [Release notes](https://github.com/spring-io/spring-github-workflows/releases)
- [Commits](spring-io/spring-github-workflows@aa731be...771879d)

---
updated-dependencies:
- dependency-name: spring-io/spring-github-workflows
  dependency-version: 771879da6435166bca602827c9f0945dd94c7fd7
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/dependabot-automerge.yml

@@ -13,7 +13,7 @@ jobs:
     permissions: write-all
 
     # Until v6 is released
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-merge-dependabot-pr.yml@aa731be83dce7009d369a49606cc150741894a55
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-merge-dependabot-pr.yml@771879da6435166bca602827c9f0945dd94c7fd7
     with:
       autoMerge: true
       mergeArguments: --auto --squash