lower bwc skip for search as you type (#40599)

modules/mapper-extras/src/test/resources/rest-api-spec/test/search-as-you-type/10_basic.yml

@@ -1,6 +1,6 @@
 setup:
   - skip:
-      version: " - 7.1.0"
+      version: " - 7.0.99"
       reason: "added in 7.1.0"
 
   - do:

modules/mapper-extras/src/test/resources/rest-api-spec/test/search-as-you-type/20_highlighting.yml

@@ -1,6 +1,6 @@
 setup:
   - skip:
-      version: " - 7.1.0"
+      version: " - 7.0.99"
       reason: "added in 7.1.0"
 
   - do:

rest-api-spec/src/main/resources/rest-api-spec/test/search/310_match_bool_prefix.yml

@@ -1,6 +1,6 @@
 setup:
   - skip:
-      version: " - 7.1.0"
+      version: " - 7.0.99"
       reason: "added in 7.1.0"
 
   - do: