Update jwt and redis dependencies

These have been flagged by Dependabot

Gemfile

@@ -15,7 +15,7 @@ end
 
 gem "acts_as_paranoid", "~> 0.9.0"
 gem "epb-auth-tools", "~> 1.1"
-gem "jwt", "~> 2.7"
+gem "jwt", "~> 2.8"
 gem "multi_json", "~> 1.15"
 gem "oauth2", "~> 2.0"
 gem "pg", "~> 1.5"
@@ -24,7 +24,7 @@ gem "rack", "~> 2.2"
 gem "rack-attack", "~> 6.7.0"
 gem "rack-test", "~> 2.1"
 gem "rake", "~> 13.1"
-gem "redis", "~> 5.0.8"
+gem "redis", "~> 5.1.0"
 gem "rspec", "~> 3.12"
 gem "sentry-ruby", "~> 5.16"
 gem "sinatra", "~> 3.2"

Gemfile.lock

@@ -31,8 +31,7 @@ GEM
       bigdecimal
       rexml
     diff-lcs (1.5.1)
-    drb (2.2.0)
-      ruby2_keywords
+    drb (2.2.1)
     epb-auth-tools (1.1.0)
       jwt (~> 2.3)
       oauth2 (>= 1.4, < 3.0)
@@ -47,7 +46,7 @@ GEM
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
     json (2.7.1)
-    jwt (2.8.0)
+    jwt (2.8.1)
       base64
     language_server-protocol (3.17.0.3)
     macaddr (1.7.2)
@@ -73,7 +72,7 @@ GEM
     parser (3.3.0.5)
       ast (~> 2.4.1)
       racc
-    pg (1.5.5)
+    pg (1.5.6)
     public_suffix (5.0.4)
     puma (6.4.2)
       nio4r (~> 2.0)
@@ -88,9 +87,9 @@ GEM
       rack (>= 1.3)
     rainbow (3.1.1)
     rake (13.1.0)
-    redis (5.0.8)
+    redis (5.1.0)
       redis-client (>= 0.17.0)
-    redis-client (0.20.0)
+    redis-client (0.21.0)
       connection_pool
     regexp_parser (2.9.0)
     rexml (3.2.6)
@@ -192,7 +191,7 @@ DEPENDENCIES
   acts_as_paranoid (~> 0.9.0)
   epb-auth-tools (~> 1.1)
   faker (~> 3.2)
-  jwt (~> 2.7)
+  jwt (~> 2.8)
   multi_json (~> 1.15)
   oauth2 (~> 2.0)
   pg (~> 1.5)
@@ -201,7 +200,7 @@ DEPENDENCIES
   rack-attack (~> 6.7.0)
   rack-test (~> 2.1)
   rake (~> 13.1)
-  redis (~> 5.0.8)
+  redis (~> 5.1.0)
   rspec (~> 3.12)
   rubocop-govuk (~> 4.13)
   rubocop-performance (~> 1.20)