Added back the deploy on PR - Clean CI 7

Author: pedrominatel

.github/workflows/docs_deploy_preview.yml

@@ -1,4 +1,4 @@
-name: Documentation Build and Deploy CI
+name: Documentation Preview Build and Deploy CI
 
 on:
   push:

.github/workflows/docs_deploy_prod.yml

@@ -1,4 +1,4 @@
-name: Documentation Build and Deploy CI
+name: Documentation Production Build and Deploy CI
 
 on:
   push:
@@ -14,6 +14,34 @@ on:
 
 jobs:
 
+  build-docs:
+    name: Build ESP-Docs
+    runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        submodules: true
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.10'
+    - name: Build
+      run: |
+        sudo apt update
+        sudo apt install python3-pip python3-setuptools
+        # GitHub CI installs pip3 and setuptools outside the path.
+        # Update the path to include them and run.
+        cd ./docs
+        PATH=/home/runner/.local/bin:$PATH pip3 install -r requirements.txt --prefer-binary
+        PATH=/home/runner/.local/bin:$PATH SPHINXOPTS="-W" build-docs -l en
+    - name: Archive Docs
+      uses: actions/upload-artifact@v2
+      with:
+        name: docs
+        path: docs
+
   deploy-preview-docs:
     name: Deploy Documentation
     runs-on: ubuntu-22.04