fix(workflows): update node version and pnpm version to use matrix variables

Author: piquark6046

.github/workflows/check.yml

@@ -14,16 +14,18 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
+        nodejs: ["lts/*", "lts/-1", "*"]
+        pnpm: ["^12.3.0"]
     runs-on: ${{ matrix.os }}
     timeout-minutes: 30
     steps:
       - uses: actions/checkout@v7
       - uses: actions/setup-node@v7
         with:
-          node-version: 24.20.0
+          node-version: ${{ matrix.nodejs }}
       - uses: pnpm/setup@v3
         with:
-          version: 12.3.4
+          version: ${{ matrix.pnpm }}
       - run: pnpm install --frozen-lockfile
       - run: pnpm run check
       - name: Require deterministic generated files

.github/workflows/update.yml

@@ -22,10 +22,10 @@ jobs:
       - uses: actions/checkout@v7
       - uses: actions/setup-node@v7
         with:
-          node-version: 24.20.0
+          node-version: "lts/*"
       - uses: pnpm/setup@v3
         with:
-          version: 12.3.4
+          version: "^12.3.0"
       - run: pnpm install --frozen-lockfile
       - name: Refresh the source snapshot
         id: refresh