Upgrade gems

Gemfile.lock

@@ -121,17 +121,18 @@ GEM
     capybara-screenshot (1.0.23)
       capybara (>= 1.0, < 4)
       launchy
-    childprocess (1.0.0)
+    childprocess (2.0.0)
+      rake (< 13.0)
     choice (0.2.0)
     coderay (1.1.2)
     concurrent-ruby (1.1.5)
     connection_pool (2.2.2)
-    coveralls (0.7.1)
-      multi_json (~> 1.3)
-      rest-client
-      simplecov (>= 0.7)
-      term-ansicolor
-      thor
+    coveralls (0.8.23)
+      json (>= 1.8, < 3)
+      simplecov (~> 0.16.1)
+      term-ansicolor (~> 1.3)
+      thor (>= 0.19.4, < 2.0)
+      tins (~> 1.6)
     crass (1.0.4)
     cucumber (3.1.2)
       builder (>= 2.1.2)
@@ -328,7 +329,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.20.3, < 2.0)
     rainbow (3.0.0)
-    rake (13.0.0)
+    rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -400,7 +401,7 @@ GEM
     simple_form (4.1.0)
       actionpack (>= 5.0)
       activemodel (>= 5.0)
-    simplecov (0.17.1)
+    simplecov (0.16.1)
       docile (~> 1.1)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)