fix(ci): dependabot submodule details

Author: c-dilks

.github/workflows/submodule.yml

@@ -2,8 +2,12 @@ name: Submodule Changes
 
 on:
   pull_request:
-    types:
-      - opened
+    # types:
+    #   - opened
+
+permissions:
+  pull-requests: write
+  contents: read
 
 jobs:
   changes:
@@ -19,7 +23,14 @@ jobs:
         id: changes
         run: |
           for sm in $(grep 'path = ' .gitmodules | awk '{print $3}'); do
-            git diff origin/${{ github.base_ref }} --submodule=log -- $sm | tee -a changes.txt
+            shas=$(git diff origin/${{ github.base_ref }} --submodule=short -- $sm)
+            if [ -n "$shas" ]; then
+              git diff origin/${{ github.base_ref }} --submodule=log -- $sm | tee -a changes.txt
+              pushd $sm
+              echo "Files changes:" | tee -a changes.txt
+              git diff --name-only $shas | tee -a changes.txt
+              popd
+            fi
           done
           echo "changes<<EOF" >> $GITHUB_OUTPUT
           cat changes.txt >> $GITHUB_OUTPUT