chore(deps): bump flagsmith-flag-engine to 0.6 (#48)

Signed-off-by: wadii <wadii.zaim@flagsmith.com>

Author: Zaimwa9

Cargo.toml

@@ -21,7 +21,7 @@ url = "2.1"
 chrono = { version = "0.4" }
 log = "0.4"
 flume = "0.10.14"
-flagsmith-flag-engine = "0.5.1"
+flagsmith-flag-engine = "0.6"
 
 [dev-dependencies]
 httpmock = "0.6"