Bump puma from 4.3.3 to 4.3.5 in /spec/integration/rails_6.0.2.1 (#808)

Bumps [puma](https://github.com/puma/puma) from 4.3.3 to 4.3.5.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](https://github.com/puma/puma/commits)

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

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

Author: dependabot[bot]

spec/integration/rails_6.0.2.1/Gemfile.lock

@@ -110,7 +110,7 @@ GEM
     nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     public_suffix (4.0.3)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.1.2)
     rack-test (1.1.0)