Use pnpm version specified only as in package.json

Author: giraugh

.github/workflows/release.yml

@@ -28,8 +28,6 @@ jobs:
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4
-        with:
-          version: 8
 
       - name: Install Dependencies
         run: pnpm ci

.github/workflows/test-prs.yml

@@ -21,8 +21,6 @@ jobs:
 
     - name: Install pnpm
       uses: pnpm/action-setup@v4
-      with:
-        version: 8
 
     - run: pnpm ci
     - run: pnpm run build