unified-storage: make sql backend update key_path for kv store (#114879)

* unified-storage: update resource_history_update_rv.sql to populate key_path in resource_history

pkg/storage/unified/sql/testdata/mysql--resource_history_update_rv-single path.sql

@@ -4,6 +4,9 @@ SET `resource_version` = (
     WHEN `guid` = 'guid1' THEN CAST(123 AS SIGNED)
     WHEN `guid` = 'guid2' THEN CAST(456 AS SIGNED)
     END
+), `key_path` = (
+    CASE
+    END
 )
 WHERE `guid` IN (
     'guid1', 'guid2'

pkg/storage/unified/sql/testdata/postgres--resource_history_update_rv-single path.sql

@@ -4,6 +4,9 @@ SET "resource_version" = (
     WHEN "guid" = 'guid1' THEN CAST(123 AS BIGINT)
     WHEN "guid" = 'guid2' THEN CAST(456 AS BIGINT)
     END
+), "key_path" = (
+    CASE
+    END
 )
 WHERE "guid" IN (
     'guid1', 'guid2'

pkg/storage/unified/sql/testdata/sqlite--resource_history_update_rv-single path.sql

@@ -4,6 +4,9 @@ SET "resource_version" = (
     WHEN "guid" = 'guid1' THEN CAST(123 AS SIGNED)
     WHEN "guid" = 'guid2' THEN CAST(456 AS SIGNED)
     END
+), "key_path" = (
+    CASE
+    END
 )
 WHERE "guid" IN (
     'guid1', 'guid2'