Remove lockfile (ilyakatz#351)

* Remove lockfile
https://yehudakatz.com/2010/12/16/clarifying-the-roles-of-the-gemspec-and-gemfile/
The intent here is to avoid the multiple dev dependencies from raising 
security issues for consumers of the gem

* Extend work by limiting files required for bundling gem

* Add missing changelog entries

.gitignore

@@ -10,3 +10,4 @@ spec/db/data_schema.rb
 .ruby-version
 .idea/
 vendor/
+Gemfile.lock

.ruby-style.yml

@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: 2.4
+  TargetRubyVersion: 3.1
   Include:
   - "**/*.podspec"
   - "**/*.jbuilder"
@@ -1058,4 +1058,4 @@ Style/FrozenStringLiteralComment:
 Layout/SpaceBeforeFirstArg:
   Enabled: false
 Style/FormatStringToken:
-  Enabled: false
+  Enabled: false

Changelog.md

@@ -1,5 +1,12 @@
 # Changelog
 
+# Unreleased
+
+- Remove committed Gemfile.lock, reduce bundled file list when running `gem install` https://github.com/ilyakatz/data-migrate/pull/351
+- [Bump actionpack from 7.1.3.4 to 7.1.4.1](https://github.com/ilyakatz/data-migrate/pull/348)
+- [Bump rexml from 3.3.6 to 3.3.9](https://github.com/ilyakatz/data-migrate/pull/349)
+- Fix db_config_with_versions arity change and backport https://github.com/ilyakatz/data-migrate/pull/337
+
 # 11.1.0
 - Allow multiple data migration paths https://github.com/ilyakatz/data-migrate/pull/331
 - Fix db:prepare:with_data task on [Rails 7.2](https://github.com/ilyakatz/data-migrate/pull/339)

data_migrate.gemspec

@@ -15,6 +15,11 @@ Gem::Specification.new do |s|
 
   s.rubyforge_project = "data_migrate"
 
+  s.files         = Dir["{lib,tasks}/**/*", "Changelog.md", "LICENSE", "README.md"]
+  s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
+  s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
+  s.require_paths = ["lib"]
+
   %w[
     activerecord
     railties
@@ -32,10 +37,4 @@ Gem::Specification.new do |s|
   s.add_development_dependency "timecop"
   s.add_development_dependency "rubocop"
   s.add_development_dependency "overcommit"
-
-
-  s.files         = `git ls-files`.split("\n")
-  s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
-  s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
-  s.require_paths = ["lib"]
 end