Bump puma from 4.3.12 to 5.6.7 (#2194)

Bumps [puma](https://github.com/puma/puma) from 4.3.12 to 5.6.7.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v4.3.12...v5.6.7)

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

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

Gemfile

@@ -31,7 +31,7 @@ gem 'mysql2', '~> 0.5'
 gem 'noid-rails'
 gem 'omniauth', '~> 1.9'
 gem 'omniauth-shibboleth', '~> 1.3'
-gem 'puma', '~> 4.3'
+gem 'puma', '~> 5.6'
 gem 'rails', '~> 5.1'
 gem 'rdf-vocab', '<= 3.1.4'
 gem 'riiif', '~> 2.0'

Gemfile.lock

@@ -1942,7 +1942,7 @@ GEM
     net-smtp (0.3.3)
       net-protocol
     net-ssh (7.0.1)
-    nio4r (2.5.8)
+    nio4r (2.5.9)
     noid (0.9.0)
     noid-rails (3.0.3)
       actionpack (>= 5.0.0, < 7)
@@ -1991,7 +1991,7 @@ GEM
       pry (>= 0.13, < 0.15)
     psych (3.3.4)
     public_suffix (5.0.0)
-    puma (4.3.12)
+    puma (5.6.7)
       nio4r (~> 2.0)
     qa (5.9.0)
       activerecord-import
@@ -2410,7 +2410,7 @@ DEPENDENCIES
   omniauth-shibboleth (~> 1.3)
   pry
   pry-byebug
-  puma (~> 4.3)
+  puma (~> 5.6)
   rails (~> 5.1)
   rails-controller-testing
   rdf-vocab (<= 3.1.4)