chore: Restrain pg and que to use Rails < 7.2.0

There is also a bottom constraint of Rails
(or Rails-related gems) 6.1.0 to prevent
cases where Rails 3.2.0 was installed instead.

The gems need updates to support Rails 7.2.

instrumentation/pg/opentelemetry-instrumentation-pg.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'opentelemetry-helpers-sql-obfuscation'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.22.1'
 
-  spec.add_development_dependency 'activerecord'
+  spec.add_development_dependency 'activerecord', '< 7.2.0', '> 6.1.0'
   spec.add_development_dependency 'appraisal', '~> 2.5'
   spec.add_development_dependency 'bundler', '~> 2.4'
   spec.add_development_dependency 'minitest', '~> 5.0'

instrumentation/que/Gemfile

@@ -9,7 +9,7 @@ source 'https://rubygems.org'
 gemspec
 
 group :test do
-  gem 'activerecord'
+  gem 'activerecord', '< 7.2.0', '> 6.1.0'
   gem 'pg'
   gem 'opentelemetry-helpers-sql-obfuscation', path: '../../helpers/sql-obfuscation'
   gem 'opentelemetry-instrumentation-base', path: '../base'