Update GitHub Actions (major) (#99)

Co-authored-by: fisker Cheung <lionkay@gmail.com>

Author: renovate[bot]

.github/renovate.json5

@@ -10,5 +10,6 @@
       groupName: "devDependencies",
       matchDepTypes: ["devDependencies"],
     },
-  ]
+  ],
+  ignoreDeps: ["node"],
 }

.github/workflows/ci.yml

@@ -18,10 +18,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     name: Build & Test (${{ matrix.os }})
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: "18"
 

.github/workflows/typecheck.yml

@@ -14,12 +14,12 @@ jobs:
     name: Typecheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
-          node-version: "18"
+          node-version: "24"
 
       - name: Install dependencies
         run: npm ci