Add Gemfile.lock, exclude from published gem

This ensures reproducible builds in CI and development environments
by locking dependency versions. The lock file is excluded from the
published gem since consumers resolve their own dependencies via
the gemspec.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: horgh

Gemfile.lock

@@ -0,0 +1,126 @@
+PATH
+  remote: .
+  specs:
+    maxmind-geoip2 (1.4.0)
+      connection_pool (~> 2.2)
+      http (>= 4.3, < 6.0)
+      maxmind-db (~> 1.4)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.8.8)
+      public_suffix (>= 2.0.2, < 8.0)
+    ast (2.4.3)
+    bigdecimal (3.3.1)
+    connection_pool (2.5.5)
+    crack (1.0.1)
+      bigdecimal
+      rexml
+    domain_name (0.6.20240107)
+    ffi (1.17.2)
+    ffi (1.17.2-aarch64-linux-gnu)
+    ffi (1.17.2-aarch64-linux-musl)
+    ffi (1.17.2-arm-linux-gnu)
+    ffi (1.17.2-arm-linux-musl)
+    ffi (1.17.2-arm64-darwin)
+    ffi (1.17.2-x86-linux-gnu)
+    ffi (1.17.2-x86-linux-musl)
+    ffi (1.17.2-x86_64-darwin)
+    ffi (1.17.2-x86_64-linux-gnu)
+    ffi (1.17.2-x86_64-linux-musl)
+    ffi-compiler (1.3.2)
+      ffi (>= 1.15.5)
+      rake
+    hashdiff (1.2.1)
+    http (5.3.1)
+      addressable (~> 2.8)
+      http-cookie (~> 1.0)
+      http-form_data (~> 2.2)
+      llhttp-ffi (~> 0.5.0)
+    http-cookie (1.1.0)
+      domain_name (~> 0.5)
+    http-form_data (2.3.0)
+    json (2.16.0)
+    language_server-protocol (3.17.0.5)
+    lint_roller (1.1.0)
+    llhttp-ffi (0.5.1)
+      ffi-compiler (~> 1.0)
+      rake (~> 13.0)
+    maxmind-db (1.4.0)
+    minitest (5.26.2)
+    parallel (1.27.0)
+    parser (3.3.10.0)
+      ast (~> 2.4.1)
+      racc
+    prism (1.6.0)
+    public_suffix (7.0.0)
+    racc (1.8.1)
+    rainbow (3.1.1)
+    rake (13.3.1)
+    regexp_parser (2.11.3)
+    rexml (3.4.4)
+    rubocop (1.81.7)
+      json (~> 2.3)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.1.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.47.1, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.48.0)
+      parser (>= 3.3.7.2)
+      prism (~> 1.4)
+    rubocop-minitest (0.38.2)
+      lint_roller (~> 1.1)
+      rubocop (>= 1.75.0, < 2.0)
+      rubocop-ast (>= 1.38.0, < 2.0)
+    rubocop-performance (1.26.1)
+      lint_roller (~> 1.1)
+      rubocop (>= 1.75.0, < 2.0)
+      rubocop-ast (>= 1.47.1, < 2.0)
+    rubocop-rake (0.7.1)
+      lint_roller (~> 1.1)
+      rubocop (>= 1.72.1)
+    rubocop-thread_safety (0.7.3)
+      lint_roller (~> 1.1)
+      rubocop (~> 1.72, >= 1.72.1)
+      rubocop-ast (>= 1.44.0, < 2.0)
+    ruby-progressbar (1.13.0)
+    unicode-display_width (3.2.0)
+      unicode-emoji (~> 4.1)
+    unicode-emoji (4.1.0)
+    webmock (3.26.1)
+      addressable (>= 2.8.0)
+      crack (>= 0.3.2)
+      hashdiff (>= 0.4.0, < 2.0.0)
+
+PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
+  ruby
+  x86-linux-gnu
+  x86-linux-musl
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
+
+DEPENDENCIES
+  maxmind-geoip2!
+  minitest
+  rake
+  rubocop
+  rubocop-minitest
+  rubocop-performance
+  rubocop-rake
+  rubocop-thread_safety
+  webmock
+
+BUNDLED WITH
+   2.6.9

maxmind-geoip2.gemspec

@@ -7,7 +7,7 @@ require 'maxmind/geoip2/version'
 
 Gem::Specification.new do |s|
   s.authors     = ['William Storey']
-  s.files       = Dir['**/*'].difference(Dir['.github/**/*', 'dev-bin/**/*'])
+  s.files       = Dir['**/*'].difference(Dir['.github/**/*', 'dev-bin/**/*', 'Gemfile*'])
   s.name        = 'maxmind-geoip2'
   s.summary     = 'A gem for interacting with the GeoIP2 webservices and databases.'
   s.version     = MaxMind::GeoIP2::VERSION