cicd: bump pnpm in actions to 9

Author: Codex-

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
           fetch-depth: 0 # Need history for changelog generation
       - uses: pnpm/action-setup@v2
         with:
-          version: 8
+          version: 9
       - uses: actions/setup-node@v4
         with:
           node-version: 20.x

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v2
         with:
-          version: 8
+          version: 9
       - uses: actions/setup-node@v4
         with:
           node-version: 20.x
@@ -40,7 +40,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v2
         with:
-          version: 8
+          version: 9
       - uses: actions/setup-node@v4
         with:
           node-version: 20.x