Fix runtime of www/gitlab-ce

Allow omniauth 1.9.* to fix bundler check when gitlab starts.

--- omniauth-oauth2.gemspec.orig	2022-07-11 15:00:59 UTC
+++ omniauth-oauth2.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |s|
 
   if s.respond_to? :add_runtime_dependency then
     s.add_runtime_dependency(%q<oauth2>.freeze, [">= 1.4", "< 3"])
-    s.add_runtime_dependency(%q<omniauth>.freeze, ["~> 2.0"])
+    s.add_runtime_dependency(%q<omniauth>.freeze, [">= 1.9", "< 3"])
     s.add_development_dependency(%q<bundler>.freeze, ["~> 2.0"])
   else
     s.add_dependency(%q<oauth2>.freeze, [">= 1.4", "< 3"])