fix the insta tests for annotations

Signed-off-by: Jacob Calvert <[email protected]>

Author: jacobcalvert

cyclonedx-bom/src/specs/common/snapshots/cyclonedx_bom__specs__common__bom__v1_5__test__it_should_serialize_a_complex_example_to_json.snap

@@ -1,6 +1,5 @@
 ---
 source: cyclonedx-bom/src/specs/common/bom.rs
-assertion_line: 654
 expression: actual
 ---
 {
@@ -851,7 +850,7 @@ expression: actual
   },
   "annotations": [
     {
-      "bomRef": "annotation-1",
+      "bom-ref": "annotation-1",
       "subjects": [
         "subject1"
       ],