Fix message encoding issue. It was encoding using ISO-8859-1 by defau…

…lt. Changed to UTF-8 encoding (#1134)

Co-authored-by: tjohnson7021 <[email protected]>

shared/src/main/java/gov/hhs/cdc/trustedintermediary/external/apache/ApacheClient.java

@@ -3,6 +3,7 @@
 import gov.hhs.cdc.trustedintermediary.wrappers.HttpClient;
 import gov.hhs.cdc.trustedintermediary.wrappers.HttpClientException;
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.util.Map;
 import org.apache.hc.client5.http.fluent.Request;
 import org.apache.hc.core5.http.Header;
@@ -32,7 +33,7 @@ public String post(String url, Map<String, String> headerMap, String body)
         try {
             return Request.post(url)
                     .setHeaders(headers)
-                    .body(new StringEntity(body))
+                    .body(new StringEntity(body, StandardCharsets.UTF_8))
                     .execute()
                     .returnContent()
                     .asString();