Update dependency sidekiq to v8

Author: renovate[bot]

Gemfile.lock

@@ -207,7 +207,7 @@ GEM
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.8.1)
-    rack (2.2.16)
+    rack (2.2.17)
     rack-test (2.2.0)
       rack (>= 1.3)
     rails (7.0.8.7)
@@ -245,7 +245,7 @@ GEM
       ffi (~> 1.0)
     rdoc (6.11.0)
       psych (>= 4.0.0)
-    redis-client (0.24.0)
+    redis-client (0.25.0)
       connection_pool
     redlock (2.0.6)
       redis-client (>= 0.14.1, < 1.0.0)