fix other rubocop offenses

Author: stefannibrasil

lib/faker/default/company.rb

@@ -494,7 +494,7 @@ def indian_gst_number(state_code: nil)
           # Construct taxpayer number
           gen.group(name: :taxpayer_number) do |g_|
             g_.letter(length: 3, ranges: ['A'..'Z'])
-            g_.letter(length: 1, ranges: [%w[A B C F G H L J P T K]].to_a)
+            g_.letter(length: 1, ranges: [%w[A B C F G H L J P T K]])
             g_.letter(length: 1, ranges: ['A'..'Z'])
             g_.int(length: 4, ranges: [0..9999])
             g_.letter(length: 1, ranges: ['A'..'Z'])

lib/faker/default/national_health_service.rb

@@ -20,8 +20,7 @@ def british_number
         # If the check digit is equivalent to 10, the number is invalid.
         # See https://en.wikipedia.org/wiki/NHS_number
         base_number -= 1 if check_digit(number: base_number) == 10
-        "#{base_number}#{check_digit(number: base_number)}".to_s
-                                                           .chars
+        "#{base_number}#{check_digit(number: base_number)}".chars
                                                            .insert(3, ' ')
                                                            .insert(7, ' ')
                                                            .join