Move workflows to Node 24 action versions

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -17,8 +17,8 @@ jobs:
     name: Typecheck, lint, tests, e2e
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-node@v5
         with:
           node-version: 24
       - name: Enable pnpm via corepack

.github/workflows/release-build.yml

@@ -25,8 +25,8 @@ jobs:
     name: Windows installer (NSIS x64)
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-node@v5
         with:
           node-version: 24
       - name: Enable pnpm via corepack
@@ -53,8 +53,8 @@ jobs:
     name: macOS installers (dmg + zip, x64 + arm64)
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-node@v5
         with:
           node-version: 24
       - name: Enable pnpm via corepack