chore(pinact): pin/update GitHub Actions (#950)

Co-authored-by: davidliu <242400+davidliu@users.noreply.github.com>

Author: davidliu

.github/workflows/changesets.yml

@@ -21,12 +21,12 @@ jobs:
       - name: Checkout Repo
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
-      - uses: pnpm/action-setup@078e9d416474b29c0c387560859308974f7e9c53 # v6.0.1
+      - uses: pnpm/action-setup@903f9c1a6ebcba6cf41d87230be49611ac97822e # v6.0.3
         with:
           version: 10
 
       - name: Use Node.js 24
-        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: 24
           cache: "pnpm"