fix: use default container with Go install

.forgejo/workflows/ci.yaml

@@ -5,8 +5,13 @@ on: [push]
 jobs:
   test:
     runs-on: docker
-    container:
-      image: golang:1.23-bookworm
     steps:
       - uses: https://code.forgejo.org/actions/checkout@v4
-      - run: go test -v ./...
+      - name: Install Go
+        run: |
+          apt-get update && apt-get install -y wget
+          wget -q https://go.dev/dl/go1.23.8.linux-amd64.tar.gz
+          tar -C /usr/local -xzf go1.23.8.linux-amd64.tar.gz
+          echo "/usr/local/go/bin" >> $GITHUB_PATH
+      - name: Run tests
+        run: go test -v ./...