Update gitlab-puma to 4.3.5-gitlab-3

- Contains fix for missing `ctype.h`
- Contains security fix for `CVE-2020-11076` and `CVE-2020-11077`

Gemfile.lock

@@ -436,7 +436,7 @@ GEM
     gitlab-mail_room (0.0.6)
     gitlab-markup (1.7.1)
     gitlab-net-dns (0.9.1)
-    gitlab-puma (4.3.3.gitlab.2)
+    gitlab-puma (4.3.5.gitlab.3)
       nio4r (~> 2.0)
     gitlab-puma_worker_killer (0.1.1.gitlab.1)
       get_process_mem (~> 0.2)

changelogs/unreleased/bump-puma-to-4-3-5-gitlab-3.yml

+---
+title: Update gitlab-puma to 4.3.5-gitlab-3
+merge_request:
+author:
+type: changed