Merge pull request #330 from c-cube/dependabot/github_actions/actions/cache-4

Bump actions/cache from 2 to 4

Author: jmid

.github/workflows/gh-pages.yml

@@ -13,7 +13,7 @@ jobs:
 
       - name: Cache opam
         id: cache-opam
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.opam
           key: opam-ubuntu-latest-4.12.0