Bump puma from 5.6.5 to 6.0.0 (#3988)

Bumps [puma](https://github.com/puma/puma) from 5.6.5 to 6.0.0.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](puma/puma@v5.6.5...v6.0.0)

---
updated-dependencies:
- dependency-name: puma
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

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

Gemfile

@@ -41,7 +41,7 @@ gem 'p3p', '~> 2.0'
 gem 'panoptes-client'
 gem 'pg', '~> 0.21'
 gem 'pg_search'
-gem 'puma', '~> 5.6.5'
+gem 'puma', '~> 6.0.0'
 gem 'pundit', '~> 2.2.0'
 gem 'rack-cors', '~> 1.0', require: 'rack/cors'
 if next?

Gemfile.lock

@@ -292,7 +292,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.7)
-    puma (5.6.5)
+    puma (6.0.0)
       nio4r (~> 2.0)
     pundit (2.2.0)
       activesupport (>= 3.0.0)
@@ -523,7 +523,7 @@ DEPENDENCIES
   pg (~> 0.21)
   pg_search
   pry
-  puma (~> 5.6.5)
+  puma (~> 6.0.0)
   pundit (~> 2.2.0)
   rack-cors (~> 1.0)
   rails (~> 5.1)