Fix Snapshot Status API Docs Test (#59902)

The clock resolution for this API is our default 200ms. It is unlikely but
possible that a shard snapshot starts and ends on separate clock ticks and that breaks the test.
Just allowing any value here seems fine to me (seems we can't match for integer specifically).

docs/reference/snapshot-restore/apis/get-snapshot-status-api.asciidoc

@@ -389,6 +389,7 @@ GET /_snapshot/my_repository/snapshot_2/_status
 // TESTRESPONSE[s/"total" : 10/"total" : $body.snapshots.0.shards_stats.total/]
 // TESTRESPONSE[s/"start_time_in_millis" : 1594829326691/"start_time_in_millis" : $body.snapshots.0.stats.start_time_in_millis/]
 // TESTRESPONSE[s/"time_in_millis" : 205/"time_in_millis" : $body.snapshots.0.stats.time_in_millis/]
+// TESTRESPONSE[s/"time_in_millis" : 0/"time_in_millis" : $body.$_path/]
 // TESTRESPONSE[s/"file_count" : 3/"file_count" : $body.snapshots.0.stats.incremental.file_count/]
 // TESTRESPONSE[s/"file_count" : 4/"file_count" : $body.snapshots.0.stats.total.file_count/]
 // TESTRESPONSE[s/"size_in_bytes" : 5969/"size_in_bytes" : $body.snapshots.0.stats.incremental.size_in_bytes/]