Bump resque from 2.3.0 to 2.6.0

Bumps [resque](https://github.com/resque/resque) from 2.3.0 to 2.6.0.
- [Release notes](https://github.com/resque/resque/releases)
- [Changelog](https://github.com/resque/resque/blob/master/HISTORY.md)
- [Commits](resque/resque@v2.3.0...v2.6.0)

---
updated-dependencies:
- dependency-name: resque
  dependency-type: indirect
...

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

Gemfile.lock

@@ -347,7 +347,7 @@ GEM
       minitest (>= 5.0)
       ruby-progressbar
     mocha (1.14.0)
-    mono_logger (1.1.1)
+    mono_logger (1.1.2)
     multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.2.3)
@@ -422,14 +422,16 @@ GEM
     puma (5.6.5)
       nio4r (~> 2.0)
     racc (1.6.0)
-    rack (2.2.4)
+    rack (2.2.8)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-openid (1.4.2)
       rack (>= 1.1.0)
       ruby-openid (>= 2.1.8)
+    rack-protection (3.1.0)
+      rack (~> 2.2, >= 2.2.4)
     rack-proxy (0.7.0)
       rack
     rack-test (2.0.2)
@@ -483,8 +485,8 @@ GEM
       tilt
     recaptcha (5.12.3)
       json
-    redis (4.8.0)
-    redis-namespace (1.9.0)
+    redis (4.8.1)
+    redis-namespace (1.11.0)
       redis (>= 4)
     regexp_parser (2.6.0)
     representable (3.2.0)
@@ -496,7 +498,7 @@ GEM
     responders (3.0.1)
       actionpack (>= 5.0)
       railties (>= 5.0)
-    resque (2.3.0)
+    resque (2.6.0)
       mono_logger (~> 1.0)
       multi_json (~> 1.0)
       redis-namespace (~> 1.6)
@@ -600,8 +602,11 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.3)
-    sinatra (1.0)
-      rack (>= 1.0)
+    sinatra (3.1.0)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.1.0)
+      tilt (~> 2.0)
     skylight (5.3.3)
       activesupport (>= 5.2.0)
     sprockets (4.1.1)