ci: Update deprecated action versions (#224)

Author: hamirmahal

.github/workflows/pr-checks.yml

@@ -7,14 +7,14 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout Repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
-      - uses: pnpm/action-setup@v2
+      - uses: pnpm/action-setup@v4
         with:
           version: 8
 
       - name: Install Node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 18
           cache: 'pnpm'