#755 added missing newly supported packageType's (afaik)

src/main/java/org/gitlab4j/api/models/PackageType.java

@@ -7,7 +7,7 @@ import com.fasterxml.jackson.annotation.JsonValue;
 
 public enum PackageType {
 
-    MAVEN, NPM;
+    MAVEN, NPM, CONAN, PYPI, COMPOSER, NUGET, HELM, GOLANG, GENERIC;
 
     private static JacksonJsonEnumHelper<PackageType> enumHelper = new JacksonJsonEnumHelper<>(PackageType.class);
 
@@ -25,4 +25,4 @@ public enum PackageType {
     public String toString() {
         return (enumHelper.toString(this));
     }
-}
+}
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