chore: upgrade to pnpm 9

Author: benmccann

.github/workflows/ci.yml

@@ -6,8 +6,8 @@ jobs:
   Lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: pnpm/action-setup@v2
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
           node-version: 16
@@ -24,8 +24,8 @@ jobs:
 
     steps:
       - run: git config --global core.autocrlf false
-      - uses: actions/checkout@v2
-      - uses: pnpm/action-setup@v2
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}

package.json

@@ -20,7 +20,7 @@
   "engines": {
     "node": ">= 16.0.0"
   },
-  "packageManager": "pnpm@8.12.1",
+  "packageManager": "pnpm@9.3.0",
   "volta": {
     "node": "20.10.0"
   },