Use JDK 17 for documentation deployment (#486)

Author: twyatt

.github/workflows/documentation.yml

@@ -9,6 +9,10 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '17'
       - run: ./gradlew dokkaHtmlMultiModule
       - uses: JamesIves/github-pages-deploy-action@v4.4.1
         with: