Try without opam cache

Author: chenglou

.github/workflows/ci.yml

@@ -18,11 +18,11 @@ jobs:
     steps:
     - uses: actions/[email protected]
 
-    - name: Cache OCaml's opam
-      uses: actions/[email protected]
-      with:
-        path: ~/.opam
-        key: ${{matrix.os}}-latest-ocaml-4.06.1
+    # - name: Cache OCaml's opam
+    #   uses: actions/[email protected]
+    #   with:
+    #     path: ~/.opam
+    #     key: ${{matrix.os}}-latest-ocaml-4.06.1
 
     - name: Use OCaml
       uses: avsm/[email protected]
@@ -36,6 +36,8 @@ jobs:
 
     - run: npm ci
 
+    # These 2 runs (or just the second?) are for when you have opam dependencies. We don't.
+    # Don't add deps. But if you ever do, un-comment these
     # - run: opam pin add rescript-editor-support.dev . --no-action
     # - run: opam install . --deps-only --with-doc --with-test