ci: do not run full backend ci when changing docs

Signed-off-by: Luca Zaninotto <luca.zaninotto@secomind.com>

Author: lusergit

.github/workflows/backend-ci.yaml

@@ -19,7 +19,6 @@
 name: Backend CI
 
 on:
-  # Run when pushing to stable branches
   push:
     paths:
       - "backend/**"
@@ -29,10 +28,10 @@ on:
       - "main"
       - "release-*"
       - "renovate/backend-*"
-  # Run on pull requests matching apps
   pull_request:
     paths:
       - "backend/**"
+      - "!backend/docs/**"
       - ".tool-versions"
       - ".github/workflows/backend-*.yaml"
 

.github/workflows/docs-ci.yaml

@@ -22,6 +22,11 @@ name: Edgehog docs generation
 # publish Generate and publish docs on pushes on main (or release branches) only
 # when backend or frontend files are touched.
 on:
+  pull_request:
+    paths:
+      - "backend/docs/**"
+      - ".tool-versions"
+      - ".github/workflows/docs-ci.yaml"
   workflow_call:
     inputs:
       release-made: