Compile with 21

Author: untoldwind

.github/workflows/gradle.yml

@@ -21,7 +21,7 @@ jobs:
     - uses: actions/checkout@v6
     - uses: actions/setup-java@v5
       with:
-        java-version: 17
+        java-version: 21
         distribution: "temurin"
         cache: "gradle"
 

.github/workflows/publish.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: "temurin"
           cache: "gradle"