fix(docs): reenabled social plugin

.forgejo/workflows/build-docs.yaml

@@ -8,6 +8,19 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Install apt packages
+        run: |
+          apt-get update
+          apt-get install -y \
+            libcairo2-dev \
+            libfreetype6-dev \
+            libffi-dev \
+            libjpeg-dev \
+            libpng-dev \
+            libz-dev \
+            pngquant
       - name: Setup Node
         uses: actions/setup-node@v1
         with: