chore(deps): bump icalendar from 4.0.7 to 7.0.3

[dependabot]

Bumps icalendar from 4.0.7 to 7.0.3.

Release notes

Sourced from icalendar's releases.

v7.0.3

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v7.0.2

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v7.0.1

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v7.0.0

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v7.0.0a3

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v7.0.0a2

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v7.0.0a1

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v6.3.2

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v6.3.1

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v6.3.0

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v6.2.0

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v6.1.3

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v6.1.2

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v6.1.1

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v6.1.0

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v6.0.1

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v6.0.0

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... (truncated)

Changelog

Sourced from icalendar's changelog.

7.0.3 (2026-03-03)

Minor changes

- Show colorful required code changes in the CI output to help contributors solve the formatting issues. :pr:`1216`
- Use ruff 0.15.0 for code formatting in :file:`tox.ini`. :pr:`1215`
New features

- Added :attr:`Event.RECURRENCE_ID <icalendar.cal.event.Event.RECURRENCE_ID>`,
  :attr:`Todo.RECURRENCE_ID <icalendar.cal.todo.Todo.RECURRENCE_ID>` and
  :attr:`Journal.RECURRENCE_ID <icalendar.cal.journal.Journal.RECURRENCE_ID>`
  properties, including support in their ``new()`` constructors. :issue:`1231`
Bug fixes

- Fixed :func:`~icalendar.timezone.tzid.tzids_from_tzinfo` not recognizing
  ``dateutil.tz.win.tzwin`` objects on Windows. UTC datetimes using
  ``dateutil.tz.gettz("UTC")`` now correctly serialize with the ``Z`` suffix
  instead of ``TZID=Coordinated Universal Time``. :issue:`1056`
- Fixed :meth:`Calendar.get_missing_tzids <icalendar.cal.calendar.Calendar.get_missing_tzids>`
  raising ``KeyError`` when a VTIMEZONE exists for a timezone not referenced by any event TZID,
  for example, when added by the ``x-wr-timezone`` conversion. :issue:`1124`
- Fixed :meth:`Calendar.get_missing_tzids <icalendar.cal.calendar.Calendar.get_missing_tzids>`
  and :meth:`Calendar.add_missing_timezones <icalendar.cal.calendar.Calendar.add_missing_timezones>`
  generating a spurious ``VTIMEZONE`` for UTC. :rfc:`5545#section-3.2.19` requires UTC datetimes
  to use the ``Z`` suffix; no ``VTIMEZONE`` component is needed or permitted. :issue:`1124`
- Fixed :meth:`Parameters.update_tzid_from <icalendar.parser.parameter.Parameters.update_tzid_from>`
  incorrectly setting ``TZID=UTC`` on UTC datetimes. :rfc:`5545#section-3.2.19` requires UTC datetimes to
  use the ``Z`` suffix without a ``TZID`` parameter. :issue:`1124`
- Renamed the public functions ``escape_char`` and ``unescape_char`` to implicit private methods ``_escape_char`` and ``_unescape_char``.
  Fixed regression from :issue:`1008` by restoring :func:`~icalendar.parser.string.escape_char` and :func:`~icalendar.parser.string.unescape_char` as public functions.
  The public functions :func:`~icalendar.parser.string.escape_char` and :func:`~icalendar.parser.string.unescape_char` are now deprecated with warnings for external users.
  :pr:`1241`.

Documentation
</code></pre>
<ul>
<li>Add <code>icalendar</code> as a local workspace dependency to the <code>docs</code> dependency group in :file:<code>pyproject.toml</code> to fix dependency resolution issues with <code>uv lock</code> during documentation builds. :issue:<code>1253</code> :pr:<code>1254</code></li>
<li>Use <code>sphinx-icalendar</code> to add syntax highlighting to iCalendar text</li>
</ul>
<h2>7.0.2 (2026-02-24)</h2>
<p>Minor changes</p>
<pre><code></tr></table> 
</code></pre>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>

<ul>
<li><a href="https://github.com/collective/icalendar/commit/f513590ebebe93770dd415736535e8e04e9c56c2"><code>f513590</code></a> version 7.0.3</li>
<li><a href="https://github.com/collective/icalendar/commit/5052002703013b7eb7d19435702285bcb7eba517"><code>5052002</code></a> version 7.0.3</li>
<li><a href="https://github.com/collective/icalendar/commit/c8b5a13eb36232e2fa297461d4eb676b361ee4f7"><code>c8b5a13</code></a> Merge pull request <a href="https://redirect.github.com/collective/icalendar/issues/1266">#1266</a> from collective/dependabot/github_actions/github-act...</li>
<li><a href="https://github.com/collective/icalendar/commit/7636204e0a6bee1f9b9eae223e363db248c0c8fa"><code>7636204</code></a> Bump actions/upload-artifact from 6 to 7 in the github-actions group</li>
<li><a href="https://github.com/collective/icalendar/commit/e69b61041945de340b532b9ff71bc4504d78f3e8"><code>e69b610</code></a> Merge pull request <a href="https://redirect.github.com/collective/icalendar/issues/1261">#1261</a> from collective/fix/issue-1056-tzwin-utc</li>
<li><a href="https://github.com/collective/icalendar/commit/2be65288a56474781ec5c583ade70dd6328748b8"><code>2be6528</code></a> fix: recognize dateutil tzwin objects as UTC on Windows</li>
<li><a href="https://github.com/collective/icalendar/commit/b2c57e8ed02d325c7fbbe49760c4cfa5b1456ab6"><code>b2c57e8</code></a> Merge pull request <a href="https://redirect.github.com/collective/icalendar/issues/1260">#1260</a> from collective/1245-docstrings-followup</li>
<li><a href="https://github.com/collective/icalendar/commit/f9685143f08d8f2d1c101e4c1b1e0e97af1c94af"><code>f968514</code></a> Improve markup, follow up to <a href="https://redirect.github.com/collective/icalendar/issues/1245">#1245</a></li>
<li><a href="https://github.com/collective/icalendar/commit/bb480a92f5f56fe7b088b8d4cb9aaf0d7f39b14f"><code>bb480a9</code></a> Merge pull request <a href="https://redirect.github.com/collective/icalendar/issues/1254">#1254</a> from Parth-Vasave/syntax-highlight-config</li>
<li><a href="https://github.com/collective/icalendar/commit/550cbf839297eafe871fd1c60e77d4e6c072d0fa"><code>550cbf8</code></a> Apply suggestions from code review</li>
<li>Additional commits viewable in <a href="https://github.com/collective/icalendar/compare/4.0.7...v7.0.3">compare view</a></li>
</ul>
</details>

&lt;br /&gt;</code></pre>


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