fixed build.yaml

.gitea/workflows/build.yaml

@@ -8,6 +8,11 @@ jobs:
     steps:
       - run: echo "The job was automatically triggered by a ${{ gitea.event_name }} event."
       - run: echo "This job is now running on a ${{ runner.os }} server"
+      - run: echo "Setting up node for checkout to be possible"
+      - name: Setup node
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20'
       - run: echo "Branch is ${{ gitea.ref }} and repository is ${{ gitea.repository }}."
       - name: Check out repository code
         uses: actions/checkout@v4