Update deploy-branches.yml

Author: dm0n3y

.github/workflows/deploy-branches.yml

@@ -37,7 +37,8 @@ jobs:
           eval $(opam env)
           export OPAMYES=1
           export DUNE_CACHE=enabled
-          opam install . --deps-only --with-test --locked
+          # opam install . --deps-only --with-test --locked
+          make deps
         working-directory: ./source
       - name: Clean opam switch
         run: |