feat: enhance Maven cache key with pom.xml hash (#650)

* feat: enhance Maven cache key with pom.xml hash

Update cache key for Maven repository to include hash of pom.xml files.

* chore: make checkout before cache

Author: borislavr

actions/maven-release/action.yaml

@@ -108,13 +108,6 @@ runs:
       uses: stCarolas/setup-maven@d6af6abeda15e98926a57b5aa970a96bb37f97d1
       with:
         maven-version: ${{ inputs.maven-version }}
-    - name: Cache local Maven repository
-      uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 #v5.0.3
-      with:
-        path: ~/.m2/repository
-        key: maven-${{ runner.os }}
-        restore-keys: |
-          maven-${{ runner.os }}
     - name: Checkout
       uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
       with:
@@ -123,6 +116,13 @@ runs:
         repository: ${{ github.repository_owner }}/${{ inputs.module }}
         token: ${{ inputs.token }}
         persist-credentials: true
+    - name: Cache local Maven repository
+      uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 #v5.0.3
+      with:
+        path: ~/.m2/repository
+        key: maven-${{ runner.os }}-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          maven-${{ runner.os }}-
     - name: Validate Maven groupId policy
       shell: bash
       run: |