Update GitHub workflow (supabase-community#211)

* Bump node version and pnpm version

* Update lock file

Author: Andrew Smith

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
     name: Release / Node ${{ matrix.node }}
     strategy:
       matrix:
-        node: ['16']
+        node: ['18']
 
     runs-on: ubuntu-latest
 
@@ -20,7 +20,7 @@ jobs:
 
       - uses: pnpm/[email protected]
         with:
-          version: 8.1.0
+          version: 8.7.0
 
       - name: Set up Node
         uses: actions/setup-node@v2