chore(deps): bump felixfbecker/language-server-protocol (#20)

Bumps [felixfbecker/language-server-protocol](https://github.com/felixfbecker/php-language-server-protocol) from 1.5.0 to 1.5.1.
- [Release notes](https://github.com/felixfbecker/php-language-server-protocol/releases)
- [Commits](felixfbecker/php-language-server-protocol@v1.5.0...1.5.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>