Update dependency rails to v8

Gemfile.lock

@@ -78,7 +78,7 @@ GEM
       babel-source (>= 4.0, < 6)
       execjs (~> 2.0)
     base64 (0.2.0)
-    benchmark (0.4.0)
+    benchmark (0.3.0)
     bigdecimal (3.1.8)
     bindex (0.8.1)
     bootsnap (1.18.4)
@@ -154,7 +154,7 @@ GEM
     money (6.19.0)
       i18n (>= 0.6.4, <= 2)
     msgpack (1.7.2)
-    net-imap (0.5.1)
+    net-imap (0.5.0)
       date
       net-protocol
     net-pop (0.1.2)
@@ -243,7 +243,7 @@ GEM
     redis-client (0.22.2)
       connection_pool
     regexp_parser (2.9.2)
-    reline (0.5.11)
+    reline (0.5.10)
       io-console (~> 0.5)
     rspec-core (3.13.2)
       rspec-support (~> 3.13.0)
@@ -304,7 +304,7 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.6.0)
-    uri (1.0.1)
+    uri (1.0.0)
     useragent (0.16.10)
     web-console (4.2.1)
       actionview (>= 6.0.0)