DEV: Bump rails_failover.

DEV: Bump rails_failover.

diff --git a/Gemfile.lock b/Gemfile.lock
index 6144799..a16bffa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/discourse/rails_failover
-  revision: ab8fd97f4507a09a2084beb13cf96e77f3fcfb6e
+  revision: 0e668eba86591c20aa7a43f47b0cd36d4eacaeb6
   specs:
     rails_failover (0.4.0)
       activerecord (~> 6.0)

GitHub sha: 5c24f83a