Potential fix for pull request finding 'CodeQL / Disabled Netty HTTP header validation'

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Author: hyperxpro

client/src/jmh/java/org/asynchttpclient/bench/Http2HeaderConversionBenchmark.java

@@ -58,7 +58,7 @@ public class Http2HeaderConversionBenchmark {
     public void setup() {
         // Representative request header set built the way NettyRequestFactory builds it:
         // names are AsciiString constants from HttpHeaderNames.
-        headers = new DefaultHttpHeaders(false);
+        headers = new DefaultHttpHeaders();
         headers.set(HttpHeaderNames.HOST, "www.example.com");
         headers.set(HttpHeaderNames.USER_AGENT, "AHC/3.0");
         headers.set(HttpHeaderNames.ACCEPT, "*/*");