Update autodoc-pydantic requirement from ==1.8.* to ==1.9.*

[dependabot]

Updates the requirements on autodoc-pydantic to permit the latest version.

Changelog

Sourced from autodoc-pydantic's changelog.

v1.9.0 - 2023-06-08

This is a feature release adding support for entity relationship diagrams while dropping python 3.6. Additionally, pydantic v2 is currently excluded until support will be added. Moreover, newest sphinx versions are added to test matrix.

Feature

- Introduce ``erdantic-figure`` and ``erdantic-figure-collapsed`` configuration
  option for pydantic models to add entity relationship diagrams to models'
  documentation either in collapsed form or as an image included to the HTML.
  `[#148](https://github.com/mansenfranzen/autodoc_pydantic/issues/148) <https://github.com/mansenfranzen/autodoc_pydantic/pull/148>`__.
Bugfix

- Run github actions on newest ``ubuntu-22.04``.
- Fix pytest errors with ``sphinx&gt;=6.1`` where the type returned by
  ``autodoc_typehints_format`` changed.
- Provide upper version boundary for pydantic to exclude v2 which
  is not supported, yet.
Internal

</code></pre>

<ul>

<li>Add <code>to_collapsable</code> to <code>directives.templates</code> that provides a

standardized interface to create a collapsable field.</li>

<li>Add <code>erdantic</code> to extras dependencies.</li>

</ul>

<p>Documentation</p>

<pre><code>

Add descriptions for erdantic-figure and erdantic-figure-collapsed

options in the configuration section.
Add an example of ERD in the example section.

Testing



Exclude python 3.6 in test matrix.
Include sphinx 6.0, 6.1, 6.2 and 7.0 in test matrix.
Add tests for erdantic-figure and erdantic-figure-collapsed.
Fix github actions CI pipeline due to unsupported ubuntu while upgrading to
newest ubuntu-22.04.

Contributors
&lt;/tr&gt;&lt;/table&gt; 
</code></pre>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/10434f76f8abb9faee39eab8f5baf3a7deca558c&quot;&gt;&lt;code&gt;10434f7&lt;/code&gt;&lt;/a> Fix poetry urllib issue.</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/ff0838f4921239e473215b5ad1ee81b6ea4e69e6&quot;&gt;&lt;code&gt;ff0838f&lt;/code&gt;&lt;/a> Merge pull request <a href="https://redirect.github.com/mansenfranzen/autodoc_pydantic/issues/155&quot;&gt;#155&lt;/a> from mansenfranzen/all-contributors/add-tkaraouzene</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/fd83255a8a4808cc4bcc02f825bbbbc28a92c626&quot;&gt;&lt;code&gt;fd83255&lt;/code&gt;&lt;/a> Add upper pydantic boundary.</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/4371c292f4b8f5fe7a735266eb0726f5fb1a5f5c&quot;&gt;&lt;code&gt;4371c29&lt;/code&gt;&lt;/a> Add contributor.</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/97558522dd0e4f3ad603ef29227ed6939a436774&quot;&gt;&lt;code&gt;9755852&lt;/code&gt;&lt;/a> docs: update .all-contributorsrc [skip ci]</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/33629ece29594ec442cb363c9cb885dc36b8809a&quot;&gt;&lt;code&gt;33629ec&lt;/code&gt;&lt;/a> docs: update README.md [skip ci]</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/1605bbcb2b4b458963167c12bb2c92fe4c272789&quot;&gt;&lt;code&gt;1605bbc&lt;/code&gt;&lt;/a> Merge pull request <a href="https://redirect.github.com/mansenfranzen/autodoc_pydantic/issues/154&quot;&gt;#154&lt;/a> from mansenfranzen/fix_pydantic_v2_incompatibility</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/1b61fed303d56f5b82b5bae9d53a1969a3446394&quot;&gt;&lt;code&gt;1b61fed&lt;/code&gt;&lt;/a> Provide upper version boundary to exclude pydantic v2.</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/19ca2ba9d6a76f6338ce0c267761da11f5a63d3c&quot;&gt;&lt;code&gt;19ca2ba&lt;/code&gt;&lt;/a> Merge pull request <a href="https://redirect.github.com/mansenfranzen/autodoc_pydantic/issues/151&quot;&gt;#151&lt;/a> from mansenfranzen/fix_docs_codecov</li>

<li><a href="https://github.com/mansenfranzen/autodoc_pydantic/commit/af8a6f249a4784269e7c16951eb005e5ef5c9029&quot;&gt;&lt;code&gt;af8a6f2&lt;/code&gt;&lt;/a> Test new pytest and coverage versions.</li>

<li>Additional commits viewable in <a href="https://github.com/mansenfranzen/autodoc_pydantic/compare/v1.8.0-a.1...v1.9.0&quot;&gt;compare view</a></li>

</ul>

</details>
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