Fix encoding error in api update resource (#61)

Author: nitzanj

cloudinary-http43/src/main/java/com/cloudinary/http43/ApiStrategy.java

@@ -9,6 +9,7 @@
 import com.cloudinary.utils.Base64Coder;
 import com.cloudinary.utils.ObjectUtils;
 import com.cloudinary.utils.StringUtils;
+import org.apache.http.Consts;
 import org.apache.http.HttpHost;
 import org.apache.http.NameValuePair;
 import org.apache.http.client.config.RequestConfig;
@@ -159,7 +160,7 @@ private HttpUriRequest prepareRequest(HttpMethod method, String apiUrl, Map<Stri
                 default:
                     throw new IllegalArgumentException("Unknown HTTP method");
             }
-            ((HttpEntityEnclosingRequestBase) request).setEntity(new UrlEncodedFormEntity(parameters));
+            ((HttpEntityEnclosingRequestBase) request).setEntity(new UrlEncodedFormEntity(parameters, Consts.UTF_8));
         }
 
         setTimeouts(request, options);

cloudinary-http44/src/main/java/com/cloudinary/http44/ApiStrategy.java

@@ -9,6 +9,7 @@
 import com.cloudinary.utils.Base64Coder;
 import com.cloudinary.utils.ObjectUtils;
 import com.cloudinary.utils.StringUtils;
+import org.apache.http.Consts;
 import org.apache.http.HttpHost;
 import org.apache.http.NameValuePair;
 import org.apache.http.client.config.RequestConfig;
@@ -155,7 +156,7 @@ private HttpUriRequest prepareRequest(HttpMethod method, String apiUrl, Map<Stri
                 default:
                     throw new IllegalArgumentException("Unknown HTTP method");
             }
-            ((HttpEntityEnclosingRequestBase) request).setEntity(new UrlEncodedFormEntity(parameters));
+            ((HttpEntityEnclosingRequestBase) request).setEntity(new UrlEncodedFormEntity(parameters, Consts.UTF_8));
         }
 
         ApiUtils.setTimeouts(request, options);