desiable sandboxing

Author: danyaberezun

.github/workflows/docker.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - run: opam --version
-      - run: opam init
+      - run: opam init --disable-sandboxing -y
       - run: opam exec -- ocamlopt --version
 
       - name: Cancel Previous Runs