Update volume_snapshotter.go

volume snapshotting currently does not work with Azure workload identities due to ValidateVolumeSnapshotterConfig throwing an error, since the AAD URI is not recognized in that method as a valid key. this will resolve the issue.

Signed-off-by: Dylan Bossie <[email protected]>

velero-plugin-for-microsoft-azure/volume_snapshotter.go

@@ -87,6 +87,7 @@ func newVolumeSnapshotter(logger logrus.FieldLogger) *VolumeSnapshotter {
 
 func (b *VolumeSnapshotter) Init(config map[string]string) error {
 	if err := veleroplugin.ValidateVolumeSnapshotterConfigKeys(config,
+		vslConfigKeyActiveDirectoryAuthorityURI,
 		vslConfigKeyResourceGroup,
 		vslConfigKeyAPITimeout,
 		vslConfigKeySubscriptionID,