chore(deps): bump html2rss-configs in the rubygems group (#688)

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


Updates `html2rss-configs` from `560c66c` to `9673d2b`
- [Commits](html2rss/html2rss-configs@560c66c...9673d2b)

---
updated-dependencies:
- dependency-name: html2rss-configs
  dependency-type: direct:production
  dependency-group: rubygems
...

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Author: dependabot[bot]

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/html2rss/html2rss-configs
-  revision: 560c66c8fb08abdc2e485a9576b8b414480b377d
+  revision: 9673d2b091e5d10bb6fa3c161b1ba97070921fd4
   specs:
     html2rss-configs (0.2.0)
       html2rss