test: fix assertion argument order in test-https-agent.js

PR-URL: #28383
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: JulianAlexis

test/parallel/test-https-agent.js

@@ -68,5 +68,5 @@ server.listen(0, function() {
 
 
 process.on('exit', function() {
-  assert.strictEqual(N * M, responses);
+  assert.strictEqual(responses, N * M);
 });