chore: add caching for build artifacts

Author: Steffen911

.github/workflows/build.yml

@@ -11,6 +11,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Cache local Maven repository
+        uses: actions/cache@v4
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
       - name: Set up Java
         uses: actions/setup-java@v4
         with:

.github/workflows/deploy.yml

@@ -13,6 +13,13 @@ jobs:
       packages: write
     steps:
       - uses: actions/checkout@v4
+      - name: Cache local Maven repository
+        uses: actions/cache@v4
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
       - name: Set up Java
         uses: actions/setup-java@v4
         with: