test: replace common.fixturesDir usage

Use `common/fixtures` module instead in test-http2-client-upload.js

PR-URL: #16800
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Anatoli Papirovski <[email protected]>
Reviewed-By: Gireesh Punathil <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

Author: sastan

test/parallel/test-http2-client-upload.js

@@ -8,9 +8,9 @@ if (!common.hasCrypto)
 const assert = require('assert');
 const http2 = require('http2');
 const fs = require('fs');
-const path = require('path');
+const fixtures = require('../common/fixtures');
 
-const loc = path.join(common.fixturesDir, 'person.jpg');
+const loc = fixtures.path('person.jpg');
 let fileData;
 
 assert(fs.existsSync(loc));