ci: only update READMEs if there are actual changes

.github/workflows/generate-docs.yaml

@@ -31,7 +31,13 @@ jobs:
         run: |
           python scripts/${{ matrix.platform }}/generate.py
 
+      - name: Check for changes in the directory
+        id: check_changes
+        run: |
+          git diff --exit-code solutions/${{ matrix.platform }} || echo "changes"
+
       - name: Commit and push changes
+        if: steps.check_changes.outputs.changes == 'changes'
         run: |
           git config user.name 'GitHub Actions'
           git config user.email 'actions@github.com'