Bump httparty from 0.18.1 to 0.21.0

Bumps [httparty](https://github.com/jnunemaker/httparty) from 0.18.1 to 0.21.0.
- [Release notes](https://github.com/jnunemaker/httparty/releases)
- [Changelog](https://github.com/jnunemaker/httparty/blob/master/Changelog.md)
- [Commits](jnunemaker/httparty@v0.18.1...v0.21.0)

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

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

Gemfile.lock

@@ -3,13 +3,11 @@ GEM
   specs:
     amazing_print (1.3.0)
     ast (2.4.2)
-    httparty (0.19.0)
-      mime-types (~> 3.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     influxdb (0.8.1)
-    mime-types (3.3.1)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2021.0901)
+    mini_mime (1.1.2)
     multi_xml (0.6.0)
     parallel (1.20.1)
     parser (3.0.2.0)