Relax avro_turf dependency to support a wider range of versions

Author: robertomiranda

streamy.gemspec

@@ -42,7 +42,7 @@ Gem::Specification.new do |spec| # rubocop:disable Metrics/BlockLength
   spec.add_development_dependency "sinatra"
 
   spec.add_dependency "activesupport", ">= 5.2"
-  spec.add_dependency "avro_turf", "~> 1.3.0"
+  spec.add_dependency "avro_turf", "~> 1.0.0"
   spec.add_dependency "waterdrop", ">= 2.4.10", "< 3.0.0"
   spec.add_dependency "webmock", "~> 3.3"
   spec.add_dependency "ostruct"