Bump sinatra from 2.0.8.1 to 3.0.4

Gemfile.lock

@@ -172,15 +172,17 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.1)
     msgpack (1.3.3)
     multi_json (1.14.1)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
-    mustermann (1.1.1)
+    mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     neo4j (9.6.1)
       activemodel (>= 4.0)
@@ -237,8 +239,8 @@ GEM
       method_source (~> 1.0)
     public_suffix (4.0.3)
     puma (3.12.6)
-    rack (2.2.2)
-    rack-protection (2.0.8.1)
+    rack (2.2.4)
+    rack-protection (3.0.4)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -295,7 +297,7 @@ GEM
       rspec-support (~> 3.9.0)
     rspec-support (3.9.2)
     ruby-progressbar (1.10.1)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     ruby_dep (1.5.0)
     rubyzip (1.3.0)
     safe_yaml (1.0.5)
@@ -315,10 +317,10 @@ GEM
       rubyzip (>= 1.2.2)
     sentry-raven (2.13.0)
       faraday (>= 0.7.6, < 1.0)
-    sinatra (2.0.8.1)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+    sinatra (3.0.4)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.4)
       tilt (~> 2.0)
     spring (2.1.0)
     spring-watcher-listen (2.0.1)
@@ -334,7 +336,7 @@ GEM
     statsd-ruby (1.4.0)
     thor (1.0.1)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.0.11)
     typhoeus (1.3.1)
       ethon (>= 0.9.0)
     tzinfo (1.2.7)