Update GitHub Actions

Signed-off-by: Sora Morimoto <sora@morimoto.io>

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly

.github/workflows/build.yml

@@ -12,25 +12,25 @@ jobs:
         os:
           - macos-latest
           - ubuntu-latest
-          - windows-latest
         ocaml-compiler:
-          - 4.10.x
-          - 4.11.x
-          - 4.12.x
+          - "4.14"
+          - "5.1"
+        include:
+          - os: windows-latest
+            ocaml-compiler: "4.14"
 
     runs-on: ${{ matrix.os }}
 
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
+      - name: Checkout tree
+        uses: actions/checkout@v4
 
-      - name: Use OCaml ${{ matrix.ocaml-compiler }}
+      - name: Set-up OCaml
         uses: ocaml/setup-ocaml@v2
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
+          allow-prerelease-opam: true
 
-      - name: Install dependencies
-        run: opam install --deps-only .
+      - run: opam install --deps-only .
 
-      - name: Build components
-        run: opam exec -- make all
+      - run: opam exec -- make all

wikidoc.opam

@@ -18,7 +18,7 @@ remove: [
   [ "rm" "-f" "%{bin}%/latex_of_wiki" ]
 ]
 depends: [
-  "ocaml" {>= "4.10.0" & < "4.13.0"}
+  "ocaml" {>= "4.10.0"}
   "base-threads"
   "base-unix"
   "ocamlfind"