Fix a build error

This commit fixes the following build error.

```consle
% bundle exec rake
(snip)

Offenses:

lib/rubocop/cop/rails/delegate.rb:103:13: W: [Correctable]
Lint/AmbiguousOperatorPrecedence: Wrap expressions with varying
precedence with parentheses to avoid ambiguity.
            include_prefix_case? && method_name == prefixed_method_name(body)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lib/rubocop/cop/rails/dynamic_find_by.rb:43:21: W: [Correctable]
Lint/AmbiguousOperatorPrecedence: Wrap expressions with varying
precedence with parentheses to avoid ambiguity.
          return if node.receiver.nil? && !inherit_active_record_base?(node) || allowed_invocation?(node)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lib/rubocop/cop/rails/http_positional_arguments.rb:72:15: W:
[Correctable] Lint/AmbiguousOperatorPrecedence: Wrap expressions with
varying precedence with parentheses to avoid ambiguity.
              format_arg?(pair.key) && data.pairs.one?
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lib/rubocop/cop/rails/pluralization_grammar.rb:64:11: W: [Correctable]
Lint/AmbiguousOperatorPrecedence: Wrap expressions with varying
precedence with parentheses to avoid ambiguity.
          singular_receiver?(number) && plural_method?(node.method_name) ||
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lib/rubocop/cop/rails/pluralization_grammar.rb:65:13: W: [Correctable]
Lint/AmbiguousOperatorPrecedence: Wrap expressions with varying
precedence with parentheses to avoid ambiguity.
            plural_receiver?(number) && singular_method?(node.method_name)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lib/rubocop/cop/rails/reversible_migration.rb:346:13: W: [Correctable]
Lint/AmbiguousOperatorPrecedence: Wrap expressions with varying
precedence with parentheses to avoid ambiguity.
            ancestor.block_type? && ...
            ^^^^^^^^^^^^^^^^^^^^^^^

218 files inspected, 6 offenses detected, 6 offenses auto-correctable
```

Author: koic

lib/rubocop/cop/rails/delegate.rb

@@ -100,7 +100,7 @@ def arguments_match?(arg_array, body)
 
         def method_name_matches?(method_name, body)
           method_name == body.method_name ||
-            include_prefix_case? && method_name == prefixed_method_name(body)
+            (include_prefix_case? && method_name == prefixed_method_name(body))
         end
 
         def include_prefix_case?

lib/rubocop/cop/rails/dynamic_find_by.rb

@@ -40,7 +40,7 @@ class DynamicFindBy < Base
         IGNORED_ARGUMENT_TYPES = %i[hash splat].freeze
 
         def on_send(node)
-          return if node.receiver.nil? && !inherit_active_record_base?(node) || allowed_invocation?(node)
+          return if (node.receiver.nil? && !inherit_active_record_base?(node)) || allowed_invocation?(node)
 
           method_name = node.method_name
           static_name = static_method_name(method_name)

lib/rubocop/cop/rails/http_positional_arguments.rb

@@ -69,7 +69,7 @@ def needs_conversion?(data)
 
           data.each_pair.none? do |pair|
             special_keyword_arg?(pair.key) ||
-              format_arg?(pair.key) && data.pairs.one?
+              (format_arg?(pair.key) && data.pairs.one?)
           end
         end
 

lib/rubocop/cop/rails/pluralization_grammar.rb

@@ -61,8 +61,8 @@ def correct_method(method_name)
         def offense?(node)
           number, = *node.receiver
 
-          singular_receiver?(number) && plural_method?(node.method_name) ||
-            plural_receiver?(number) && singular_method?(node.method_name)
+          (singular_receiver?(number) && plural_method?(node.method_name)) ||
+            (plural_receiver?(number) && singular_method?(node.method_name))
         end
 
         def plural_method?(method_name)

lib/rubocop/cop/rails/reversible_migration.rb

@@ -343,8 +343,8 @@ def within_change_method?(node)
 
         def within_reversible_or_up_only_block?(node)
           node.each_ancestor(:block).any? do |ancestor|
-            ancestor.block_type? &&
-              ancestor.send_node.method?(:reversible) ||
+            (ancestor.block_type? &&
+              ancestor.send_node.method?(:reversible)) ||
               ancestor.send_node.method?(:up_only)
           end
         end