Gleam v1.9.0: enhancements for debugging, git dependencies, and JavaScript performance

Gleam v1.9.0 has been released, introducing significant new features and improvements for developers. Notable updates include the 'echo' keyword for enhanced debugging, which outputs a value along with its file path and line number, and git dependencies support to manage early prototypes without publishing them as packages. The Gleam language server now supports go-to type definition, HexDocs search integration, and custom CA certificates for enterprise environments. New code actions include converting between pipeline and function call syntax, generating JSON encoders and multi-variant decoders, and string interpolation. Additionally, module qualifiers now show documentation when hovered over.