disable read-only mode in mingw-check image for merge pipeline

Signed-off-by: onur-ozkan <[email protected]>

Author: onur-ozkan

src/ci/github-actions/jobs.yml

@@ -210,6 +210,8 @@ auto:
     <<: *job-linux-8c
 
   - image: mingw-check
+    env:
+      READ_ONLY_SRC: 0
     <<: *job-linux-4c
 
   - image: test-various