Updated GitHub workflow

Author: mmottl

.github/workflows/main.yml

@@ -15,26 +15,54 @@ jobs:
         os:
           - ubuntu-latest
           - macos-latest
+          - windows-latest
 
     runs-on: ${{ matrix.os }}
 
     steps:
       - name: Checkout tree
         uses: actions/checkout@v4
 
-      - name: Set-up OCaml ${{ matrix.ocaml-compiler }}
+      - name: Set-up OCaml
         uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: 5
 
-      - name: Set PKG_CONFIG_PATH for libpq (keg-only)
-        run: |
-          echo "PKG_CONFIG_PATH=/opt/homebrew/opt/libpq/lib/pkgconfig" \
-          >> $GITHUB_ENV
-
       - run: opam install . --deps-only --with-test
 
       - run: opam exec -- dune build
 
       - run: opam exec -- dune runtest
-# vim: filetype=yaml
+
+  lint-doc:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout tree
+        uses: actions/checkout@v4
+      - name: Set-up OCaml
+        uses: ocaml/setup-ocaml@v3
+        with:
+          ocaml-compiler: 5
+      - uses: ocaml/setup-ocaml/lint-doc@v3
+
+  lint-fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout tree
+        uses: actions/checkout@v4
+      - name: Set-up OCaml
+        uses: ocaml/setup-ocaml@v3
+        with:
+          ocaml-compiler: 5
+      - uses: ocaml/setup-ocaml/lint-fmt@v3
+
+  lint-opam:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout tree
+        uses: actions/checkout@v4
+      - name: Set-up OCaml
+        uses: ocaml/setup-ocaml@v3
+        with:
+          ocaml-compiler: 5
+      - uses: ocaml/setup-ocaml/lint-opam@v3