Update External Reference

Signed-off-by: Alex Alzate <aalzate@sonatype.com>

Author: mr-zepol

src/main/java/org/cyclonedx/model/ExternalReference.java

@@ -58,6 +58,8 @@ public enum Type {
         DOCUMENTATION("documentation"),
         @JsonProperty("support")
         SUPPORT("support"),
+        @JsonProperty("source-distribution")
+        SOURCE_DISTRIBUTION("source-distribution"),
         @JsonProperty("distribution")
         DISTRIBUTION("distribution"),
         @JsonProperty("distribution-intake")
@@ -112,6 +114,8 @@ public enum Type {
         EVIDENCE("evidence"),
         @JsonProperty("formulation")
         FORMULATION("formulation"),
+        @JsonProperty("rfc-9116")
+        RFC_9116("rfc-9116"),
         @JsonProperty("other")
         OTHER("other");