Remove Juwelier dependency

Juwelier is no longer used for version management or gemspec
generation. Remove it from both the Gemfile and gemspec dependencies.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: yahonda

Gemfile

@@ -1,7 +1,6 @@
 source "http://rubygems.org"
 
 group :development do
-  gem "juwelier", "~> 2.0"
   gem "rspec_junit_formatter"
   gem "rubocop", require: false
   gem "rubocop-performance", require: false

ruby-plsql.gemspec

@@ -80,7 +80,7 @@ Gem::Specification.new do |s|
     s.specification_version = 4
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new("1.2.0") then
-      s.add_development_dependency("juwelier".freeze, ["~> 2.0"])
+
       s.add_development_dependency("rspec_junit_formatter".freeze, [">= 0"])
       s.add_development_dependency("rake".freeze, [">= 10.0"])
       s.add_development_dependency("rspec".freeze, ["~> 3.1"])
@@ -89,7 +89,7 @@ Gem::Specification.new do |s|
       s.add_development_dependency("simplecov".freeze, [">= 0"])
       s.add_development_dependency("ruby-oci8".freeze, ["~> 2.1"])
     else
-      s.add_dependency("juwelier".freeze, ["~> 2.0"])
+
       s.add_dependency("rspec_junit_formatter".freeze, [">= 0"])
       s.add_dependency("rake".freeze, [">= 10.0"])
       s.add_dependency("rspec".freeze, ["~> 3.1"])