Bump net-http-persistent from 4.0.0 to 4.0.1

Bumps [net-http-persistent](https://github.com/drbrain/net-http-persistent) from 4.0.0 to 4.0.1.
- [Release notes](https://github.com/drbrain/net-http-persistent/releases)
- [Changelog](https://github.com/drbrain/net-http-persistent/blob/master/History.txt)
- [Commits](https://github.com/drbrain/net-http-persistent/compare/v4.0.0...v4.0.1)

---
updated-dependencies:
- dependency-name: net-http-persistent
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -280,7 +280,7 @@ GEM
     multi_xml (0.6.0)
     multipart-post (2.1.1)
     nested_form (0.3.2)
-    net-http-persistent (4.0.0)
+    net-http-persistent (4.0.1)
       connection_pool (~> 2.2)
     netrc (0.11.0)
     newrelic_rpm (8.1.0)