ci: fix non-existent v6 actions causing workflows to fail instantly

.github/workflows/ci.yml

@@ -18,9 +18,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v4
         with:
           node-version: '22'
           cache: 'npm'
@@ -43,9 +43,9 @@ jobs:
         node-version: ['20', '22']
         shard: [1, 2]
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'
@@ -62,9 +62,9 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v4
         with:
           node-version: '22'
           cache: 'npm'

.github/workflows/e2e-headed.yml

@@ -16,9 +16,9 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v4
         with:
           node-version: '22'
           cache: 'npm'

.github/workflows/pkg-pr-new.yml

@@ -13,9 +13,9 @@ jobs:
     if: ${{ vars.PKG_PR_NEW_ENABLED == 'true' }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v4
         with:
           node-version: '22'
           cache: 'npm'

.github/workflows/release.yml

@@ -13,9 +13,9 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v4
         with:
           node-version: '22'
           registry-url: 'https://registry.npmjs.org'

.github/workflows/security.yml

@@ -19,9 +19,9 @@ jobs:
   audit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v4
         with:
           node-version: '22'
           cache: 'npm'