ci: update action versions

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       should_skip: ${{ steps.skip_check.outputs.should_skip }}
     steps:
       - id: skip_check
-        uses: fkirc/skip-duplicate-actions@v3.4.0
+        uses: fkirc/skip-duplicate-actions@v5.3.1
         with:
           cancel_others: "true"
 
@@ -33,12 +33,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup Node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
 
       - name: Install Node dependencies
         run: npm ci --prefix riven/srcgen
@@ -100,7 +100,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Install nightly toolchain
         uses: actions-rs/toolchain@v1