Fix npm package resolution (#339)

Current approach fails with an 'ERR_PACKAGE_PATH_NOT_EXPORTED' error for
npm package that defines an exports field in the package.json

e.g:
> require.resolve('@redstone-finance/evm-connector/package.json')
will fail with
Uncaught:
Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './package.json'
is not defined by "exports" in
/home/pg/github/evm-test-suite/eth-rpc/node_modules/@redstone-finance/evm-connector/package.json
  code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'

js/resolc/package.json

@@ -32,6 +32,7 @@
         "@types/node": "^22.9.0",
         "commander": "^13.1.0",
         "package-json": "^10.0.1",
+        "resolve-pkg": "^2.0.0",
         "solc": ">=0.8.0 <=0.8.30"
     }
 }