chore(deps): update pnpm/action-setup action to v4

Author: renovate[bot]

.github/workflows/check.yml

@@ -16,7 +16,7 @@ jobs:
         with:
           node-version: 20
 
-      - uses: pnpm/action-setup@v2
+      - uses: pnpm/action-setup@v4
         name: Install pnpm
         with:
           version: 9

.github/workflows/deploy.yml

@@ -29,7 +29,7 @@ jobs:
         with:
           node-version: 20
 
-      - uses: pnpm/action-setup@v2
+      - uses: pnpm/action-setup@v4
         name: Install pnpm
         with:
           version: 9