chore: contracts testing yml fix

Author: Anmol-Dhiman

.github/workflows/contracts-testing.yml

@@ -74,7 +74,7 @@ jobs:
 
     - name: Test with coverage
       run: |         
-        yarn hardhat coverage --solcoverjs ./.solcover.js --temp artifacts --testfiles \"./test/**/*.ts\" --show-stack-traces
+        yarn hardhat coverage --solcoverjs ./.solcover.js --temp artifacts --testfiles './test/**/*.ts' --show-stack-traces
       working-directory: contracts
 
     - name: Upload a build artifact