chore(deps): bump html2rss in the rubygems group

Bumps the rubygems group with 1 update: [html2rss](https://github.com/html2rss/html2rss).


Updates `html2rss` from `d04ae85` to `528ba93`
- [Release notes](https://github.com/html2rss/html2rss/releases)
- [Commits](html2rss/html2rss@d04ae85...528ba93)

---
updated-dependencies:
- dependency-name: html2rss
  dependency-version: 528ba933f7bdbb94372c0286c87082b456aa01c8
  dependency-type: direct:production
  dependency-group: rubygems
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/html2rss/html2rss
-  revision: d04ae85eeed4b6c389170de47c84a0df6c704b9e
+  revision: 528ba933f7bdbb94372c0286c87082b456aa01c8
   specs:
     html2rss (0.17.0)
       addressable (~> 2.7)