Lint our GitHub action CI

Author: dinosaure

.github/workflows/build.yml

@@ -0,0 +1,18 @@
+name: CI
+on: [push, pull_request]
+jobs:
+  build:
+    strategy:
+      matrix:
+        ocaml-version: [4.14.3,5.4.1]
+    runs-on: [ubuntu-latest, macos-latest, windows-latest]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Set-up OCaml
+        uses: ocaml/setup-ocaml@v3
+        with:
+          ocaml-compiler: ${{ matrix.ocaml-version }}
+          opam-local-packages: bechamel.opam
+      - run: opam pin add . -n
+      - run: opam install bechamel --with-test -v