Log Message:
texlab: update to 5.12.0.

## [5.12.0] - 2023-12-03

### Added

- Infer `texlab.build.auxDirectory`, `texlab.build.logDirectory` and \ 
`texlab.build.pdfDirectory` from `latexmkrc` if available \ 
([#907](https://github.com/latex-lsp/texlab/issues/907))

### Fixed

- Do not report `undefined reference` errors when using `\nocite{*}` \ 
([#964](https://github.com/latex-lsp/texlab/issues/964))
- Fix potential crash when parsing build log files \ 
([#973](https://github.com/latex-lsp/texlab/issues/973))
- Set the final tab stop of the `\begin` snippet inside the environment \ 
([#963](https://github.com/latex-lsp/texlab/issues/963))