ci(workflows): Pinned GitHub Actions to patch versions

- Pinned checkout to v4.2.2, setup-go to v5.3.0, and setup-node to v4.1.0.
- Left CI job steps and triggers unchanged.

.github/workflows/ci.yml

@@ -9,12 +9,12 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/checkout@v4.2.2
+      - uses: actions/setup-go@v5.3.0
         with:
           go-version-file: go.mod
           cache: true
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v4.1.0
         with:
           node-version: 20
       - name: gofmt