Merge pull request #60 from splitrb/dependabot/bundler/sinatra-3.0.1

Bump sinatra from 2.2.2 to 3.0.1

Author: andrehjr

Gemfile.lock

@@ -1,18 +1,18 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    mustermann (2.0.2)
+    mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     rack (2.2.4)
-    rack-protection (2.2.2)
+    rack-protection (3.0.1)
       rack
     redis (4.5.1)
     ruby2_keywords (0.0.5)
     rubystats (0.3.0)
-    sinatra (2.2.2)
-      mustermann (~> 2.0)
-      rack (~> 2.2)
-      rack-protection (= 2.2.2)
+    sinatra (3.0.1)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.1)
       tilt (~> 2.0)
     split (4.0.1)
       redis (>= 4.2)