v0.5.1 Release

What's Changed

• feat: add position for each name in identifier by @He1pa in #608
• chore: add the maintainer file by @Peefy in #609
• Refactor: refactor find def in LSP by @He1pa in #606
• chore: update maintainers and adopters. by @Peefy in #611
• bugfix: if_stmt orelse postion by @He1pa in #612
• refactor: enhance kcl and its tool cli error message and add more tests. by @Peefy in #618
• ci: add backport action by @Peefy in #617
• fix: fix performance regression on resolver::parse_doc_string by @He1pa in #619
• feat: lsp completion of pkg, var and schema attr by @He1pa in #614
• chore: bump serde_yaml to latest to solve security issues and error test cases by @Peefy in #623
• feat: support for taking mod relative paths as input. by @zong-zhe in #622

Full Changelog: v0.5.0...v0.5.1