fix: broken CI (#1527)

* Remove package manager

* update pnpm

* Revert "update pnpm"

This reverts commit fd36635.

* try

* try

Author: saihaj

package.json

@@ -10,10 +10,9 @@
   },
   "license": "(Apache-2.0 OR MIT)",
   "private": true,
-  "packageManager": "[email protected]",
   "engines": {
     "node": ">=18.0.0",
-    "pnpm": ">=8"
+    "pnpm": ">=7"
   },
   "scripts": {
     "build": "pnpm --filter=@graphprotocol/graph-* build",