Upgrade to the latest reusable workflows

**Auto-cherry-pick to `3.1.x` & `3.0.x`**

# Conflicts:
#	.github/workflows/ci-snapshot.yml
#	.github/workflows/merge-dependabot-pr.yml

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@v2
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-backport-issue.yml@main
     secrets:
       GH_ACTIONS_REPO_TOKEN: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}

.github/workflows/ci-snapshot.yml

@@ -9,9 +9,10 @@ on:
 
 jobs:
   build-snapshot:
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-artifactory-gradle-snapshot.yml@v2
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-artifactory-gradle-snapshot.yml@main
     secrets:
       GRADLE_ENTERPRISE_CACHE_USER: ${{ secrets.GRADLE_ENTERPRISE_CACHE_USER }}
       GRADLE_ENTERPRISE_CACHE_PASSWORD: ${{ secrets.GRADLE_ENTERPRISE_CACHE_PASSWORD }}
       GRADLE_ENTERPRISE_SECRET_ACCESS_KEY: ${{ secrets.GRADLE_ENTERPRISE_SECRET_ACCESS_KEY }}
-      JF_ARTIFACTORY_SPRING: ${{ secrets.JF_ARTIFACTORY_SPRING }}
+      ARTIFACTORY_USERNAME: ${{ secrets.ARTIFACTORY_USERNAME }}
+      ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}

.github/workflows/pr-build.yml

@@ -7,4 +7,4 @@ on:
 
 jobs:
   build-pull-request:
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-gradle-pull-request-build.yml@v2
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-gradle-pull-request-build.yml@main

.github/workflows/release.yml

@@ -10,13 +10,15 @@ jobs:
     permissions:
       actions: write
 
-    uses: spring-io/spring-github-workflows/.github/workflows/spring-artifactory-gradle-release.yml@v2
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-artifactory-gradle-release.yml@main
     secrets:
       GH_ACTIONS_REPO_TOKEN: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}
       GRADLE_ENTERPRISE_CACHE_USER: ${{ secrets.GRADLE_ENTERPRISE_CACHE_USER }}
       GRADLE_ENTERPRISE_CACHE_PASSWORD: ${{ secrets.GRADLE_ENTERPRISE_CACHE_PASSWORD }}
       GRADLE_ENTERPRISE_SECRET_ACCESS_KEY: ${{ secrets.GRADLE_ENTERPRISE_SECRET_ACCESS_KEY }}
       JF_ARTIFACTORY_SPRING: ${{ secrets.JF_ARTIFACTORY_SPRING }}
+      ARTIFACTORY_USERNAME: ${{ secrets.ARTIFACTORY_USERNAME }}
+      ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
       OSSRH_URL: ${{ secrets.OSSRH_URL }}
       OSSRH_S01_TOKEN_USERNAME: ${{ secrets.OSSRH_S01_TOKEN_USERNAME }}
       OSSRH_S01_TOKEN_PASSWORD: ${{ secrets.OSSRH_S01_TOKEN_PASSWORD }}