fix(ci): revert setup-node to v4 (v5 does not exist)

Co-Authored-By: Rayner Zeng <1361209507@qq.com>

Author: ZengLiangYi

.github/workflows/deploy-site.yml

@@ -23,7 +23,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v4
         with:
           node-version: 22
           cache: npm

.github/workflows/release.yml

@@ -87,7 +87,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v4
         with:
           node-version: 22
           cache: npm
@@ -119,7 +119,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v4
         with:
           node-version: 22
           cache: npm