build(deps): bump html2rss from 04720b8 to e11e251 in the rubygems group (#928)

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

Updates `html2rss` from `04720b8` to `e11e251`
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/html2rss/html2rss/commit/e11e2513046ca688cba6178f20ca23adef3d92b7"><code>e11e251</code></a>
fix(ci): align zlib lock with release runner (<a
href="https://redirect.github.com/html2rss/html2rss/issues/347">#347</a>)</li>
<li><a
href="https://github.com/html2rss/html2rss/commit/08387dd67da9987328aba3ddb753a5926e0d8594"><code>08387dd</code></a>
chore(release): cut v0.18.0 (<a
href="https://redirect.github.com/html2rss/html2rss/issues/346">#346</a>)</li>
<li>See full diff in <a
href="https://github.com/html2rss/html2rss/compare/04720b83c69f8b2fcf6d9ba7f360b84f6bcb5fe6...e11e2513046ca688cba6178f20ca23adef3d92b7">compare
view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore <dependency name> major version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's major version (unless you unignore this specific
dependency's major version or upgrade to it yourself)
- `@dependabot ignore <dependency name> minor version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's minor version (unless you unignore this specific
dependency's minor version or upgrade to it yourself)
- `@dependabot ignore <dependency name>` will close this group update PR
and stop Dependabot creating any more for the specific dependency
(unless you unignore this specific dependency or upgrade to it yourself)
- `@dependabot unignore <dependency name>` will remove all of the ignore
conditions of the specified dependency
- `@dependabot unignore <dependency name> <ignore condition>` will
remove the ignore condition of the specified dependency and ignore
conditions


</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -1,9 +1,9 @@
 GIT
   remote: https://github.com/html2rss/html2rss
-  revision: 04720b83c69f8b2fcf6d9ba7f360b84f6bcb5fe6
+  revision: e11e2513046ca688cba6178f20ca23adef3d92b7
   branch: master
   specs:
-    html2rss (0.17.0)
+    html2rss (0.18.0)
       addressable (~> 2.7)
       brotli
       dry-validation
@@ -455,7 +455,7 @@ CHECKSUMS
   fiber-local (1.1.0) sha256=c885f94f210fb9b05737de65d511136ea602e00c5105953748aa0f8793489f06
   fiber-storage (1.0.1) sha256=f48e5b6d8b0be96dac486332b55cee82240057065dc761c1ea692b2e719240e1
   hashdiff (1.2.1) sha256=9c079dbc513dfc8833ab59c0c2d8f230fa28499cc5efb4b8dd276cf931457cd1
-  html2rss (0.17.0)
+  html2rss (0.18.0)
   html2rss-configs (0.2.0)
   i18n (1.14.8) sha256=285778639134865c5e0f6269e0b818256017e8cde89993fdfcbfb64d088824a5
   io-console (0.8.2) sha256=d6e3ae7a7cc7574f4b8893b4fca2162e57a825b223a177b7afa236c5ef9814cc