add missing negative tag

Signed-off-by: georgi.michev <georgi.michev@vereign.com>

src/test/resources/features/tsa/infohub/v1/export/GET.feature

@@ -36,6 +36,7 @@ Feature: API - TSA - Infohub - v1/export GET
     And the field {proof.verificationMethod} has the value {did:web:gaiax.vereign.com:tsa:policy:policy:example:returnDID:1.0:evaluation#key1}
     And the field {proof.type} has the value {JsonWebSignature2020}
 
+  @negative
   Scenario: TSA - Export missing export through Infohub - Negative
     When I export the {missing_export} via TSA Infohub API
     Then the status code should be {404}