Bump puma from 4.3.3 to 4.3.12

Bumps [puma](https://github.com/puma/puma) from 4.3.3 to 4.3.12.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v4.3.3...v4.3.12)

---
updated-dependencies:
- dependency-name: puma
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -236,7 +236,7 @@ GEM
       ruby2_keywords (~> 0.0.1)
     mysql2 (0.5.3)
     netrc (0.11.0)
-    nio4r (2.5.7)
+    nio4r (2.5.8)
     nokogiri (1.11.2)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -245,7 +245,7 @@ GEM
     pg (1.2.2)
     popper_js (1.16.0)
     public_suffix (4.0.3)
-    puma (4.3.3)
+    puma (4.3.12)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)