squash: fix linter errors

Author: arielvalentin

instrumentation/ethon/lib/opentelemetry/instrumentation/ethon/helpers.rb

@@ -33,7 +33,7 @@ module Helpers
         # @api private
         def known_methods
           @known_methods ||= if (env_methods = ENV.fetch('OTEL_INSTRUMENTATION_HTTP_KNOWN_METHODS', nil))
-                               env_methods.split(',').map(&:strip).map(&:upcase).freeze
+                               env_methods.split(',').map { |x| x.strip.upcase }.freeze
                              else
                                DEFAULT_KNOWN_METHODS
                              end

instrumentation/http/lib/opentelemetry/instrumentation/http/helpers.rb

@@ -33,7 +33,7 @@ module Helpers
         # @api private
         def known_methods
           @known_methods ||= if (env_methods = ENV.fetch('OTEL_INSTRUMENTATION_HTTP_KNOWN_METHODS', nil))
-                               env_methods.split(',').map(&:strip).map(&:upcase).freeze
+                               env_methods.split(',').map { |x| x.strip.upcase }.freeze
                              else
                                DEFAULT_KNOWN_METHODS
                              end

instrumentation/http_client/lib/opentelemetry/instrumentation/http_client/helpers.rb

@@ -33,7 +33,7 @@ module Helpers
         # @api private
         def known_methods
           @known_methods ||= if (env_methods = ENV.fetch('OTEL_INSTRUMENTATION_HTTP_KNOWN_METHODS', nil))
-                               env_methods.split(',').map(&:strip).map(&:upcase).freeze
+                               env_methods.split(',').map { |x| x.strip.upcase }.freeze
                              else
                                DEFAULT_KNOWN_METHODS
                              end

instrumentation/restclient/lib/opentelemetry/instrumentation/restclient/helpers.rb

@@ -33,7 +33,7 @@ module Helpers
         # @api private
         def known_methods
           @known_methods ||= if (env_methods = ENV.fetch('OTEL_INSTRUMENTATION_HTTP_KNOWN_METHODS', nil))
-                               env_methods.split(',').map(&:strip).map(&:upcase).freeze
+                               env_methods.split(',').map { |x| x.strip.upcase }.freeze
                              else
                                DEFAULT_KNOWN_METHODS
                              end