Bump erb_lint from 0.5.0 to 0.6.0 (#672)

Gemfile.lock

@@ -28,22 +28,22 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.3.1)
+    concurrent-ruby (1.3.3)
     contracts (0.17)
     crass (1.0.6)
     docile (1.4.0)
     dotenv (3.1.2)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
-    erb_lint (0.5.0)
+    erb_lint (0.6.0)
       activesupport
       better_html (>= 2.0.1)
       parser (>= 2.7.1.4)
       rainbow
-      rubocop
+      rubocop (>= 1)
       smart_properties
-    erubi (1.12.0)
+    erubi (1.13.0)
     erubis (2.7.0)
     eventmachine (1.2.7)
     execjs (2.9.1)
@@ -124,22 +124,22 @@ GEM
       middleman-core (>= 3.2)
       rouge (~> 3.2)
     mini_portile2 (2.8.7)
-    minitest (5.23.1)
-    nokogiri (1.16.5)
+    minitest (5.24.1)
+    nokogiri (1.16.7)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     padrino-helpers (0.15.3)
       i18n (>= 0.6.7, < 2)
       padrino-support (= 0.15.3)
       tilt (>= 1.4.1, < 3)
     padrino-support (0.15.3)
-    parallel (1.24.0)
-    parser (3.3.2.0)
+    parallel (1.25.1)
+    parser (3.3.4.0)
       ast (~> 2.4.1)
       racc
     parslet (2.0.0)
     public_suffix (5.0.5)
-    racc (1.8.0)
+    racc (1.8.1)
     rack (2.2.9)
     rack-livereload (0.3.17)
       rack
@@ -156,7 +156,7 @@ GEM
       ffi (~> 1.0)
     redcarpet (3.6.0)
     regexp_parser (2.9.2)
-    rexml (3.3.2)
+    rexml (3.3.4)
       strscan
     rouge (3.30.0)
     rubocop (1.64.1)