chore(ci): upgrade GitHub Actions to Node 24 runtimes

Bump actions off the deprecated Node 20 runtime:
- actions/checkout v4 -> v5
- actions/setup-node v4 -> v5
- pnpm/action-setup v4 -> v6
- actions/upload-pages-artifact v3 -> v5
- actions/deploy-pages v4 -> v5

CI-only change; no package or runtime surface affected.

Author: dnlbox

.github/workflows/ci.yml

@@ -14,11 +14,11 @@ jobs:
       matrix:
         node-version: ["22"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
           node-version: ${{ matrix.node-version }}
           cache: pnpm

.github/workflows/codeql.yml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4

.github/workflows/compat.yml

@@ -11,11 +11,11 @@ jobs:
     name: Bun
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
           node-version: "22"
           cache: pnpm
@@ -29,11 +29,11 @@ jobs:
     name: Deno
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
           node-version: "22"
           cache: pnpm

.github/workflows/docs.yml

@@ -21,11 +21,11 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
           node-version: "22"
           cache: pnpm
@@ -34,7 +34,7 @@ jobs:
 
       - run: pnpm docs:build
 
-      - uses: actions/upload-pages-artifact@v3
+      - uses: actions/upload-pages-artifact@v5
         with:
           path: docs/site/dist
 
@@ -46,4 +46,4 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5

.github/workflows/publish.yml

@@ -14,11 +14,11 @@ jobs:
       id-token: write   # required for OIDC trusted publishing
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
           node-version: lts/*
           registry-url: https://registry.npmjs.org
@@ -45,11 +45,11 @@ jobs:
       packages: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
           node-version: lts/*
           registry-url: https://npm.pkg.github.com

.github/workflows/snyk.yml

@@ -16,11 +16,11 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v5
         with:
           node-version: "22"
           cache: pnpm