Fix: missing event push for key store reset

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

goKMS/kms/store/kms-keystore.go

@@ -151,6 +151,14 @@ func (ks *KmsKeyStore) Reset() {
 	ks.keyStoreMutex.Lock()
 	defer ks.keyStoreMutex.Unlock()
 	ks.keyStore = make(map[uuid.UUID]*KmsKSElement)
+
+	// publish to eventBus
+	go func() {
+		err := ks.eventBus.Publish(event.NewKeyStoreEvent())
+		if err != nil {
+			log.Errorf("Publishing a key store update through the eventBus failed, err: %s", err)
+		}
+	}()
 }
 
 func AddETSIKeysToKeystore(keyStore *KmsKeyStore, keyContainer []etsi14.KeyContainerKeysInner) error {