Revert "Disable changed files - PR testing not possible"

This reverts commit cd073af.

Author: igorpecovnik

.github/workflows/download-and-test-external.yml

@@ -94,13 +94,13 @@ jobs:
           fetch-depth: '2'
           clean: false
 
-#      - name: Get changed files
-#        id: changed-files
-#        uses: tj-actions/changed-files@v43
-#        with:
-#          path: os
-#          files: |
-#            external/*.conf
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v43
+        with:
+          path: os
+          files: |
+            external/*.conf
 
       - name: Build list
         id: lists
@@ -338,13 +338,13 @@ jobs:
           fetch-depth: '2'
           clean: false
 
-#      - name: Get changed files
-#        id: changed-files
-#        uses: tj-actions/changed-files@v43
-#        with:
-#          path: os
-#          files: |
-#            external/*.conf
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v43
+        with:
+          path: os
+          files: |
+            external/*.conf
 
       - name: "Make JSON"
         id: json