add pnpm action-setup action

Author: filiphric

.github/workflows/links.yml

@@ -9,6 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
       - uses: volta-cli/action@v4
         with:
           node-version: 20.12.0

.github/workflows/lint.yml

@@ -12,6 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
       - uses: volta-cli/action@v4
         with:
           node-version: 20.12.0

.github/workflows/playwright.yml

@@ -20,6 +20,7 @@ jobs:
     needs: [wait-for-vercel]
     steps:
       - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
           node-version: lts/*