test: fix tests for npm 7.0.0

PR-URL: #35631
Reviewed-By: Ben Coe <[email protected]>
Reviewed-By: Ruy Adorno <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Daijiro Wachi <[email protected]>

test/parallel/test-npm-version.js

@@ -14,5 +14,5 @@ const npmPathPackageJson = path.resolve(
 );
 
 const pkg = require(npmPathPackageJson);
-assert(pkg.version.match(/^\d+\.\d+\.\d+-rc\.\d+$/),
+assert(pkg.version.match(/^\d+\.\d+\.\d+$/),
        `unexpected version number: ${pkg.version}`);