Merge pull request #839 from Julow/ci-pin-ocsigenserver-master

CI: Pin latest version of ocsigenserver

Author: balat

.github/workflows/workflow.yml

@@ -33,9 +33,10 @@ jobs:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           opam-pin: false
 
-      - run: opam install . --deps-only
+      - run: opam pin -y git+https://github.com/ocsigen/ocsigenserver#master
+      - run: opam install . --deps-only -y
 
-      - run: opam exec -- make all
+      - run: opam exec -- dune build -p eliom
 
   lint-fmt:
     runs-on: ubuntu-latest