fix: remove packageManager property from package.json

Author: beeman

.github/workflows/test-anchor.yml

@@ -16,6 +16,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v4
         with:
+          version: 9
           run_install: false
 
       - name: Install Node.js

.github/workflows/test-web.yml

@@ -16,6 +16,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v4
         with:
+          version: 9
           run_install: false
 
       - name: Install Node.js

package.json

@@ -62,6 +62,5 @@
       "anchor": "0.30.1",
       "solana": "1.18.0"
     }
-  },
-  "packageManager": "[email protected]+sha512.dc09430156b427f5ecfc79888899e1c39d2d690f004be70e05230b72cb173d96839587545d09429b55ac3c429c801b4dc3c0e002f653830a420fa2dd4e3cf9cf"
+  }
 }