Add trigger for pull_requests on Debian docs

Author: raulcd

.github/workflows/docs.yml

@@ -18,6 +18,11 @@
 name: Docs
 
 on:
+  pull_request:
+    paths:
+      - '.github/workflows/docs.yml'
+      - 'cpp/apidoc/**'
+      - 'docs/**'
   push:
 
 permissions:

.github/workflows/docs_light.yml

@@ -21,14 +21,15 @@ on:
   pull_request:
     paths:
       - '.dockerignore'
-      - 'docs/**'
       - '.github/workflows/docs_light.yml'
       - 'ci/docker/conda.dockerfile'
       - 'ci/docker/conda-cpp.dockerfile'
       - 'ci/docker/conda-python.dockerfile'
       - 'ci/scripts/cpp_build.sh'
       - 'ci/scripts/python_build.sh'
       - 'compose.yaml'
+      - 'cpp/apidoc/**'
+      - 'docs/**'
 
 permissions:
   contents: read