Update nc to work on some non BSD systems.

[bvulaj]

Fixes #26
Fixes #31

[bvulaj]

@ymnk - It would be great if we could work to get this merged and release. Thanks!

[ktham]

@bvulaj I think this library is no longer maintained, I don't see the author @ymnk having responded to outstanding issues or any commit activity in a long time

[ecoupal]

Please merge this !

[tristanlins]

I've build a patches version.
You can find on gitlab https://gitlab.com/tristanlins/jsch-agent-proxy/-/packages/109518

Simply add the gitlab repository to your pom.xml

+    <repositories>
+        <repository>
+            <id>gitlab-maven</id>
+            <url>https://gitlab.com/api/v4/projects/17382956/packages/maven</url>
+        </repository>
+    </repositories>

And change the usocket-nc dependency version to 0.0.9-p1

     <dependencies>
         <dependency>
             <groupId>com.jcraft</groupId>
             <artifactId>jsch.agentproxy.usocket-nc</artifactId>
-            <version>0.0.9</version>
+            <version>0.0.9-p1</version>
         </dependency>
     </dependencies>