Update ruby-lsp to v0.16.7 and prism to v0.29.0
What does this MR do and why?
The latter is needed to fix a compile issue seen in Fedora: https://github.com/ruby/prism/issues/2645
Edited by Stan Hu
The latter is needed to fix a compile issue seen in Fedora: https://github.com/ruby/prism/issues/2645