feat(router): fix sample-project tests

Author: mjlescano

.github/workflows/verify.yaml

@@ -42,4 +42,4 @@ jobs:
           cache: 'npm'
       - run: npm ci
       - run: npm run build
-      - run: cd ./packages/sample-hardhat-project && npm run test
+      - run: cd ./examples/sample-hardhat-project && npm run test

README.md

@@ -44,7 +44,7 @@ cd ./packages/cli && npm start -- <package:version>
 Test changes to the Hardhat plug-in in the sample project:
 
 ```
-cd ./packages/sample-hardhat-project && npx hardhat cannon:build
+cd ./examples/sample-hardhat-project && npx hardhat cannon:build
 ```
 
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