chore: update pnpm version in github actions

.github/workflows/tests.yml

@@ -34,7 +34,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: pnpm/action-setup@v2.2.4
         with:
-          version: 8.0.0
+          version: 8
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
@@ -53,7 +53,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: pnpm/action-setup@v2.2.4
         with:
-          version: 8.0.0
+          version: 8
       - uses: actions/setup-node@v3
         with:
           node-version: "18"