Upgrading JVM version in Github workflows

Author: severn-everett

.github/workflows/cd.yml

@@ -18,7 +18,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 11
+          java-version: 17
       - name: Publish
         run: ./gradlew publishToSonatype closeAndReleaseSonatypeStagingRepository -no-daemon --no-parallel --stacktrace -DSONATYPE_USERNAME_2=$SONATYPE_USERNAME_2 -DSONATYPE_PASSWORD_2=$SONATYPE_PASSWORD_2 -DGPG_PRIVATE_PASSWORD=$GPG_PRIVATE_PASSWORD -DGPG_PRIVATE_KEY=$GPG_PRIVATE_KEY
         env:

.github/workflows/ci.yml

@@ -52,7 +52,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 11
+          java-version: 17
 
       - name: Restore Gradle cache
         id: cache-gradle

.github/workflows/github-pages.yml

@@ -36,7 +36,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 11
+          java-version: 17
       - name: Generate Dokka HTML docs
         run: ./gradlew :dokkaHtml
       - name: Upload Dokka output