we need java 21

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

Author: tobiasKaminsky

.github/workflows/android.yml

@@ -23,7 +23,7 @@ jobs:
       - uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           distribution: 'temurin'
-          java-version: '17'
+          java-version: '21'
           check-latest: true
           cache: 'gradle'
       - name: Validate Gradle Wrapper
@@ -38,7 +38,7 @@ jobs:
       - uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           distribution: 'temurin'
-          java-version: '17'
+          java-version: '21'
           check-latest: true
           cache: 'gradle'
       - name: Lint
@@ -53,7 +53,7 @@ jobs:
       - uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           distribution: 'temurin'
-          java-version: '17'
+          java-version: '21'
           check-latest: true
           cache: 'gradle'
       - name: Unit tests
@@ -68,7 +68,7 @@ jobs:
       - uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           distribution: 'temurin'
-          java-version: '17'
+          java-version: '21'
           check-latest: true
           cache: 'gradle'
       - name: Build debug APK