Upgrade rack and related dependencies in Gemfile and lockfile

Gemfile

@@ -77,7 +77,7 @@ gem "jbuilder", require: false
 gem "web-console", require: false
 
 # Action Pack and railties
-rack_version = ENV.fetch("RACK", "~> 2.0") # Change to ~> 3 after #46594 is merged.
+rack_version = ENV.fetch("RACK", "~> 3.0")
 gem "rack", rack_version
 
 # Active Job

Gemfile.lock

@@ -331,8 +331,6 @@ GEM
     msgpack (1.7.0)
     multi_json (1.15.0)
     multipart-post (2.2.3)
-    mustermann (3.0.0)
-      ruby2_keywords (~> 0.0.1)
     mysql2 (0.5.4)
     net-http-persistent (4.0.1)
       connection_pool (~> 2.2)
@@ -373,18 +371,16 @@ GEM
       pg (>= 1.1, < 2.0)
     raabro (1.4.0)
     racc (1.6.2)
-    rack (2.2.5)
+    rack (3.0.7)
     rack-cache (1.13.0)
       rack (>= 0.4)
-    rack-protection (3.0.5)
-      rack
-    rack-session (1.0.1)
-      rack (< 3)
-    rack-test (2.0.2)
+    rack-session (2.0.0)
+      rack (>= 3.0.0)
+    rack-test (2.1.0)
       rack (>= 1.3)
-    rackup (1.0.0)
-      rack (< 3)
-      webrick
+    rackup (2.1.0)
+      rack (>= 3)
+      webrick (~> 1.8)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
@@ -478,11 +474,8 @@ GEM
       faraday (>= 0.17.5, < 3.a)
       jwt (>= 1.5, < 3.0)
       multi_json (~> 1.10)
-    sinatra (3.0.5)
-      mustermann (~> 3.0)
-      rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.0.5)
-      tilt (~> 2.0)
+    sinatra (1.0)
+      rack (>= 1.0)
     sneakers (2.11.0)
       bunny (~> 2.12)
       concurrent-ruby (~> 1.0)
@@ -518,7 +511,6 @@ GEM
     terser (1.1.13)
       execjs (>= 0.3.0, < 3)
     thor (1.2.2)
-    tilt (2.0.11)
     timeout (0.3.2)
     tomlrb (2.0.3)
     trailblazer-option (0.1.2)
@@ -547,7 +539,7 @@ GEM
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
-    webrick (1.7.0)
+    webrick (1.8.1)
     websocket (1.2.9)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
@@ -603,7 +595,7 @@ DEPENDENCIES
   puma (>= 5.0.3)
   queue_classic (>= 4.0.0)
   racc (>= 1.4.6)
-  rack (~> 2.0)
+  rack (~> 3.0)
   rack-cache (~> 1.2)
   rails!
   rake (>= 13)