[TEST] Skip index info REST test on 5.4.x and below

The deprecation logging was introduced in 5.5.x, so mixed clusters fail when a
5.4 node is used for the REST endpoint.

Author: dakrone

rest-api-spec/src/main/resources/rest-api-spec/test/indices.get/10_basic.yaml

@@ -80,8 +80,9 @@ setup:
 "Get index infos should work for wildcards":
 
   - skip:
-      features:
-        - warnings
+      features: "warnings"
+      version: " - 5.4.99"
+      reason: deprecation logging for multiple features was introduced in 5.5.0
 
   - do:
       warnings: