build(deps-dev): bump solargraph from 0.51.1 to 0.51.2 (#4204)

Bumps [solargraph](https://github.com/castwide/solargraph) from 0.51.1 to 0.51.2.
- [Changelog](https://github.com/castwide/solargraph/blob/master/CHANGELOG.md)
- [Commits](castwide/solargraph@v0.51.1...v0.51.2)

---
updated-dependencies:
- dependency-name: solargraph
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -523,7 +523,7 @@ GEM
       rack-protection (= 3.2.0)
       sinatra (= 3.2.0)
       tilt (~> 2.0)
-    solargraph (0.51.1)
+    solargraph (0.51.2)
       backport (~> 1.2)
       benchmark
       bundler (~> 2.0)