Remove pnpm version specification from CI, deploy, and release workflows

Author: PanJ

.github/workflows/ci.yml

@@ -16,8 +16,6 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: pnpm/action-setup@v4
-        with:
-          version: 9
 
       - uses: actions/setup-node@v4
         with:

.github/workflows/deploy-docs.yml

@@ -22,8 +22,6 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: pnpm/action-setup@v4
-        with:
-          version: 9
 
       - uses: actions/setup-node@v4
         with:

.github/workflows/release.yml

@@ -16,8 +16,6 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: pnpm/action-setup@v4
-        with:
-          version: 9
 
       - uses: actions/setup-node@v4
         with: