Bump dogstatsd-ruby from 4.8.2 to 4.8.3 (#12774)

Bumps [dogstatsd-ruby](https://github.com/DataDog/dogstatsd-ruby) from 4.8.2 to 4.8.3.
- [Release notes](https://github.com/DataDog/dogstatsd-ruby/releases)
- [Changelog](https://github.com/DataDog/dogstatsd-ruby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/DataDog/dogstatsd-ruby/compare/v4.8.2...v4.8.3)

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

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

Gemfile.lock

@@ -240,7 +240,7 @@ GEM
     diff-lcs (1.4.4)
     distribution (0.8.0)
     docile (1.3.4)
-    dogstatsd-ruby (4.8.2)
+    dogstatsd-ruby (4.8.3)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     doorkeeper (5.5.0)