v0.21.0

🚧 Breaking Changes

• Support on_call_node_leave events in index enhancement (#2754) by @st0012
• Refactor client capabilities into its own class (#2805) by @vinistock

✨ Enhancements

• Add hover for global variables (#2691) by @snutij
• Add completion for global variables (#2749) by @snutij
• Add definition for all missing global variable nodes (#2757) by @snutij
• Add launcher mode for gracefully handling missing dependencies (#2751) by @vinistock
• Support module_function in the indexer (#2733) by @IgnacioFan
• Use Bundler CLI directly and send errors to telemetry (#2774) by @vinistock
• Handle responses for show window request and delegate to add-ons (#2803) by @vinistock

🐛 Bug Fixes

• Prevent passing version to bin/bundle (#2765) by @vinistock
• Avoid showing private methods for external references (#2783) by @vinistock
• Ensure absolute lockfile remotes for gems nested inside project (#2799) by @vinistock

📦 Other Changes

• Accept keyword splat options for server initialization (#2744) by @vinistock
• Make sure .ruby-lsp directory always exists (#2747) by @vinistock
• Only retry building composed bundle if there's a custom Gemfile (#2755) by @vinistock
• Add launch mode integration tests (#2766) by @vinistock
• Add some necessary guards for operating with a partial bundle (#2797) by @vinistock
• Print Bundler progress to stderr when invoking CLI directly (#2801) by @vinistock