test: pin sqlite3 to < 2.0 for now

because the Rails adapter requires `~> 1.4` through v7.1.3.2

we can loosen this for later versions of Rails that contain rails/rails#51592
and any future releases of 7.1 that contain rails/rails#51636

Gemfile

@@ -12,7 +12,7 @@ platforms :jruby do
 end
 
 platforms :ruby do
-  gem 'sqlite3', '~> 1.4.0'
+  gem 'sqlite3', '~> 1.4', '< 2.0' # can allow 2.0 once Rails's sqlite adapter allows it
 end
 
 gem 'activerecord', '>= 5.0.0'

gemfiles/rails_6.0.gemfile

@@ -11,7 +11,7 @@ platform :jruby do
 end
 
 platform :ruby do
-  gem 'sqlite3'
+  gem 'sqlite3', '~> 1.4', '< 2.0' # can allow 2.0 once Rails's sqlite adapter allows it
 end
 
 gemspec :path => '../'

gemfiles/rails_6.1.gemfile

@@ -11,7 +11,7 @@ platform :jruby do
 end
 
 platform :ruby do
-  gem 'sqlite3'
+  gem 'sqlite3', '~> 1.4', '< 2.0' # can allow 2.0 once Rails's sqlite adapter allows it
 end
 
 gemspec :path => '../'

gemfiles/rails_7.0.gemfile

@@ -11,7 +11,7 @@ platform :jruby do
 end
 
 platform :ruby do
-  gem 'sqlite3'
+  gem 'sqlite3', '~> 1.4', '< 2.0' # can allow 2.0 once Rails's sqlite adapter allows it
 end
 
 gemspec :path => '../'

gemfiles/rails_7.1.gemfile

@@ -11,7 +11,7 @@ platform :jruby do
 end
 
 platform :ruby do
-  gem 'sqlite3'
+  gem 'sqlite3', '~> 1.4', '< 2.0' # can allow 2.0 once Rails's sqlite adapter allows it
 end
 
 gemspec :path => '../'