Fix cache overwriting JFrog settings.xml with expired tokens

The actions/cache step was restoring ~/.m2 (including settings.xml
from a previous run with an expired OIDC token) after the composite
action generated a fresh settings.xml. This caused 401 errors on
subsequent runs.

Fix by:
1. Caching only ~/.m2/repository (artifacts only, not settings.xml)
2. Moving cache restore before the build environment setup

Author: mihaimitrea-db

.github/workflows/push.yml

@@ -20,18 +20,18 @@ jobs:
       - name: Checkout
         uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
 
-      - name: Setup build environment
-        uses: ./.github/actions/setup-build-environment
-        with:
-          java-version: 11
-
       - name: Cache Maven packages
         uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
-          path: ~/.m2
+          path: ~/.m2/repository
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
           restore-keys: ${{ runner.os }}-m2
 
+      - name: Setup build environment
+        uses: ./.github/actions/setup-build-environment
+        with:
+          java-version: 11
+
       - name: Check formatting
         run: mvn --errors spotless:check
 
@@ -60,18 +60,18 @@ jobs:
       - name: Checkout
         uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
 
-      - name: Setup build environment
-        uses: ./.github/actions/setup-build-environment
-        with:
-          java-version: ${{ matrix.java-version }}
-
       - name: Cache Maven packages
         uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
-          path: ~/.m2
+          path: ~/.m2/repository
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
           restore-keys: ${{ runner.os }}-m2
 
+      - name: Setup build environment
+        uses: ./.github/actions/setup-build-environment
+        with:
+          java-version: ${{ matrix.java-version }}
+
       - name: Check Unit Tests
         run: mvn --errors test