patch-fluent_plugin_graylog_gemspec

--- fluent-plugin-graylog.gemspec.orig  2021-05-20 20:05:36.608489000 +0000
+++ fluent-plugin-graylog.gemspec       2021-05-20 20:06:00.869370000 +0000
@@ -22,7 +22,7 @@
     s.specification_version = 4
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_runtime_dependency(%q<fluentd>.freeze, ["~> 0.12.36"])
+      s.add_runtime_dependency(%q<fluentd>.freeze, [">= 0.12.36"])
       s.add_development_dependency(%q<rake>.freeze, ["~> 10.0"])
       s.add_development_dependency(%q<rspec>.freeze, ["~> 3.3"])
       s.add_development_dependency(%q<test-unit>.freeze, ["~> 3.1"])