Update excon to version 0.71.1

Gemfile.lock

@@ -100,7 +100,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.3)
-    crass (1.0.4)
+    crass (1.0.5)
     database_cleaner (1.7.0)
     datetime_picker_rails (0.0.7)
       momentjs-rails (>= 2.8.1)
@@ -119,7 +119,7 @@ GEM
       dragonfly (~> 1.0)
       fog-aws
     erubi (1.7.1)
-    excon (0.57.1)
+    excon (0.71.1)
     execjs (2.7.0)
     factory_bot (4.11.1)
       activesupport (>= 3.0.0)
@@ -173,7 +173,7 @@ GEM
       addressable (~> 2.3)
     letter_opener (1.7.0)
       launchy (~> 2.2)
-    loofah (2.2.3)
+    loofah (2.3.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -192,7 +192,7 @@ GEM
       railties (>= 3.1)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.10.1)
+    nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     oath (1.1.0)
       bcrypt