test: fixe argument order in assert.strictEqual

File: test/parallel/test-http-client-upload-buf.js

PR-URL: #24140
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

test/parallel/test-http-client-upload-buf.js

@@ -27,8 +27,7 @@ const http = require('http');
 const N = 1024;
 
 const server = http.createServer(common.mustCall(function(req, res) {
-  assert.strictEqual('POST', req.method);
-
+  assert.strictEqual(req.method, 'POST');
   let bytesReceived = 0;
 
   req.on('data', function(chunk) {