Update JDK version to 21 in CI workflow

Author: AfigAliyev

.github/workflows/cinemax-ci.yml

@@ -24,11 +24,11 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
           distribution: zulu
-          java-version: 17
+          java-version: 21
           cache: gradle
       - name: Run spotless
         run: ./gradlew spotlessCheck
@@ -45,11 +45,11 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
           distribution: zulu
-          java-version: 17
+          java-version: 21
           cache: gradle
       - name: Run tests
         run: ./gradlew test
@@ -62,11 +62,11 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
           distribution: zulu
-          java-version: 17
+          java-version: 21
           cache: gradle
       - name: Assemble debug
         run: ./gradlew :app:assembleDebug
@@ -79,11 +79,11 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
           distribution: zulu
-          java-version: 17
+          java-version: 21
           cache: gradle
       - name: Assemble release
         run: ./gradlew :app:assembleRelease