texlab: update to 5.7.0.

## [5.7.0] - 2023-06-07

### Added

- Add symbol support for `thmtools` package ([#894](https://github.com/latex-lsp/texlab/issues/894))
- Add `texlab.findEnvironments` command to return the list of environments containing a position ([#892](https://github.com/latex-lsp/texlab/issues/892))

### Changed

- Show inlay hints for labels after the command instead of inside the argument ([#890](https://github.com/latex-lsp/texlab/issues/890))

### Fixed

- Prevent adding trailing newline after formatting with `latexmk` ([#895](https://github.com/latex-lsp/texlab/issues/895))
- Improving `\paragraph` parsing

(wiz)