fix(ci): use java-version 21 for publish step

stainless-app[bot] · stainless-app[bot] · commit db861bd0cd1b · 2025-09-03T15:18:52.000Z
diff --git a/.github/workflows/create-releases.yml b/.github/workflows/create-releases.yml
@@ -29,7 +29,7 @@ jobs:
           distribution: temurin
           java-version: |
             8
-            17
+            21
           cache: gradle
 
       - name: Set up Gradle
diff --git a/.github/workflows/publish-sonatype.yml b/.github/workflows/publish-sonatype.yml
@@ -18,7 +18,7 @@ jobs:
           distribution: temurin
           java-version: |
             8
-            17
+            21
           cache: gradle
 
       - name: Set up Gradle
