Update sass-rails to version 6.0.0

Gemfile.lock

@@ -539,19 +539,16 @@ GEM
     ruby_parser (3.17.0)
       sexp_processor (~> 4.15, >= 4.15.1)
     rubyzip (2.3.2)
-    sass (3.7.4)
-      sass-listen (~> 4.0.0)
-    sass-listen (4.0.0)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-    sass-rails (5.1.0)
-      railties (>= 5.2.0)
-      sass (~> 3.1)
-      sprockets (>= 2.8, < 4.0)
-      sprockets-rails (>= 2.0, < 4.0)
-      tilt (>= 1.1, < 3)
+    sass-rails (6.0.0)
+      sassc-rails (~> 2.1, >= 2.1.1)
     sassc (2.4.0)
       ffi (~> 1.9)
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
     selectize-rails (0.12.6)
     selenium-webdriver (3.142.7)
       childprocess (>= 0.5, < 4.0)
@@ -584,7 +581,7 @@ GEM
     spring (1.6.3)
     spring-commands-rspec (1.0.4)
       spring (>= 0.9.1)
-    sprockets (3.7.2)
+    sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.2)