Update GitHub Actions workflows to use the latest versions of actions, enhancing performance and compatibility.

.github/workflows/close-inactive.yml

@@ -11,7 +11,7 @@ jobs:
       pull-requests: write
       issues: write
     steps:
-      - uses: actions/stale@v5
+      - uses: actions/stale@v9
         with:
           days-before-issue-stale: 360
           days-before-issue-close: 14

.github/workflows/sync-icons.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout main branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 

.github/workflows/validate-pr.yml

@@ -13,7 +13,7 @@ jobs:
       pull-requests: write
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
           ref: ${{ github.event.pull_request.head.sha }}
@@ -42,11 +42,11 @@ jobs:
         continue-on-error: true
 
       - name: Use Node.js 20
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 20
 
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         name: Install pnpm
         with:
           version: 8
@@ -57,7 +57,7 @@ jobs:
         run: |
           echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         name: Setup pnpm cache
         with:
           path: ${{ env.STORE_PATH }}