Upgrade GHA reusable workflows from main to v6

Author: artembilan

.github/workflows/backport-issue.yml

@@ -7,6 +7,6 @@ on:
 
 jobs:
   backport-issue:
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-backport-issue.yml@main
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-backport-issue.yml@v6
     secrets:
       GH_ACTIONS_REPO_TOKEN: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}

.github/workflows/ci-snapshot.yml

@@ -17,7 +17,7 @@ concurrency:
 
 jobs:
   build-snapshot:
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-artifactory-gradle-snapshot.yml@main
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-artifactory-gradle-snapshot.yml@v6
     with:
       gradleTasks: ${{ github.event_name == 'schedule' && '--rerun-tasks' || '' }}
     secrets:

.github/workflows/merge-dependabot-pr.yml

@@ -12,7 +12,7 @@ jobs:
   merge-dependabot-pr:
     permissions: write-all
 
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-merge-dependabot-pr.yml@main
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-merge-dependabot-pr.yml@v6
     with:
       mergeArguments: --auto --squash
       autoMergeSnapshots: true

.github/workflows/pr-build.yml

@@ -8,4 +8,4 @@ on:
 
 jobs:
   build-pull-request:
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-gradle-pull-request-build.yml@main
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-gradle-pull-request-build.yml@v6

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
       contents: write
       issues: write
 
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-artifactory-gradle-release.yml@main
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-artifactory-gradle-release.yml@v6
     with:
       deployMilestoneToCentral: true
     secrets: