fix gh pages (#1130)

Signed-off-by: Gregor Zeitlinger <[email protected]>

Author: zeitlinger

.github/workflows/github-pages.yaml

@@ -32,16 +32,14 @@ jobs:
     runs-on: ubuntu-latest
     env:
       HUGO_VERSION: 0.115.4
-      JAVA_HOME: /usr/lib/jvm/java-17-openjdk-amd64
     steps:
+      - uses: actions/checkout@v4
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
           java-version: 17
           distribution: temurin
           cache: 'maven'
-      - name: Install Protoc
-        uses: zchee/setup-protoc@v1
       - name: Install Hugo CLI
         run: |
           wget -O ${{ runner.temp }}/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \