Read proxy from environment for the selfhosted client (#145)

Co-authored-by: Joshua Wright <[email protected]>
Co-authored-by: David Collom <[email protected]>

pkg/client/selfhosted/selfhosted.go

@@ -130,6 +130,7 @@ func New(ctx context.Context, log *logrus.Entry, opts *Options) (*Client, error)
 
 		client.Client.Transport = &http.Transport{
 			TLSClientConfig: tlsConfig,
+			Proxy:           http.ProxyFromEnvironment,
 		}
 	}