Bump sinatra-contrib and sinatra

Bumps [sinatra-contrib](https://github.com/sinatra/sinatra) and [sinatra](https://github.com/sinatra/sinatra). These dependencies needed to be updated together.

Updates `sinatra-contrib` from 3.1.0 to 3.2.0
- [Changelog](https://github.com/sinatra/sinatra/blob/main/CHANGELOG.md)
- [Commits](sinatra/sinatra@v3.1.0...v3.2.0)

Updates `sinatra` from 3.1.0 to 3.2.0
- [Changelog](https://github.com/sinatra/sinatra/blob/main/CHANGELOG.md)
- [Commits](sinatra/sinatra@v3.1.0...v3.2.0)

---
updated-dependencies:
- dependency-name: sinatra-contrib
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: sinatra
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -91,7 +91,8 @@ GEM
       ruby2_keywords (~> 0.0.1)
     mutex_m (0.2.0)
     rack (2.2.8)
-    rack-protection (3.1.0)
+    rack-protection (3.2.0)
+      base64 (>= 0.1.0)
       rack (~> 2.2, >= 2.2.4)
     raindrops (0.20.1)
     redis (5.0.8)
@@ -103,16 +104,16 @@ GEM
       faraday (>= 1)
       faraday-multipart (>= 1)
     ruby2_keywords (0.0.5)
-    sinatra (3.1.0)
+    sinatra (3.2.0)
       mustermann (~> 3.0)
       rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.1.0)
+      rack-protection (= 3.2.0)
       tilt (~> 2.0)
-    sinatra-contrib (3.1.0)
-      multi_json
+    sinatra-contrib (3.2.0)
+      multi_json (>= 0.0.2)
       mustermann (~> 3.0)
-      rack-protection (= 3.1.0)
-      sinatra (= 3.1.0)
+      rack-protection (= 3.2.0)
+      sinatra (= 3.2.0)
       tilt (~> 2.0)
     slack-ruby-bot (0.16.1)
       activesupport
@@ -126,7 +127,7 @@ GEM
       hashie
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
-    tilt (2.2.0)
+    tilt (2.3.0)
     timers (4.3.5)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)