Bump GitHub Actions to latest major versions

- actions/checkout v4 -> v5 (Node 24 runtime)
- actions/setup-node v4 -> v6 (latest, v6.2.0)
- actions/upload-artifact v4 -> v5
- actions/download-artifact v4 -> v5 (kept in lockstep with upload; the
  artifact actions require matching majors for up/download)

setup-node v5+ auto-enables dependency caching, which errors when no lockfile
is present — and native/ doesn't commit package-lock.json. Set
package-manager-cache: false on each setup-node to preserve v4 behavior.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: benasher44

.github/workflows/native-build.yml

@@ -14,7 +14,7 @@ jobs:
     outputs:
       include: ${{ steps.gen.outputs.include }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - id: gen
         run: |
           include=$(node -e "
@@ -43,13 +43,14 @@ jobs:
         if: matrix.musl
         run: apk add --no-cache git make g++ python3
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Node.js
         if: "!matrix.musl"
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: "20"
+          package-manager-cache: false
 
       - name: Install dependencies
         working-directory: native
@@ -68,7 +69,7 @@ jobs:
         run: npm test
 
       - name: Upload prebuild
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: prebuild-${{ matrix.platform }}
           path: native/prebuilds/${{ matrix.platform }}/libpg_query_native.node

.github/workflows/native-ci.yml

@@ -26,7 +26,7 @@ jobs:
     outputs:
       include: ${{ steps.gen.outputs.include }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - id: gen
         run: |
           include=$(node -e "
@@ -55,16 +55,17 @@ jobs:
         if: matrix.musl
         run: apk add --no-cache git
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Node.js
         if: "!matrix.musl"
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: "20"
+          package-manager-cache: false
 
       - name: Download prebuild
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: prebuild-${{ matrix.platform }}
           path: native/prebuilds/${{ matrix.platform }}

.github/workflows/native-release.yml

@@ -25,15 +25,16 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: "20"
+          package-manager-cache: false
           registry-url: "https://registry.npmjs.org"
 
       - name: Download all prebuilds
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: native/prebuilds
           pattern: prebuild-*