chore(deps): update pre-commit hook adamchainz/django-upgrade to v1.19.0 (#3047)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[adamchainz/django-upgrade](https://togithub.com/adamchainz/django-upgrade)
| repository | minor | `1.18.0` -> `1.19.0` |

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---

### Release Notes

<details>
<summary>adamchainz/django-upgrade (adamchainz/django-upgrade)</summary>

###
[`v1.19.0`](https://togithub.com/adamchainz/django-upgrade/blob/HEAD/CHANGELOG.rst#1190-2024-06-27)

[Compare
Source](https://togithub.com/adamchainz/django-upgrade/compare/1.18.0...1.19.0)

- Add Django 4.2+ fixer to rewrite `index_together` declarations into
`indexes` declarations in model `Meta` classes.
    This fixer can make changes that require migrations.
Add a `test for pending migrations
<https://adamj.eu/tech/2024/06/23/django-test-pending-migrations/>`\__
to ensure that you do not miss these.

`PR #&#8203;464
<https://github.com/adamchainz/django-upgrade/pull/464>`\__.

-   Fix tracking of AST node parents.
    This may have fixed some subtle bugs in these fixers:

    -   `admin_register`
    -   `assert_form_error`
    -   `default_app_config`
    -   `management_commands`
    -   `request_headers`
    -   `settings_database_postgresql`
    -   `settings_storages`
    -   `testcase_databases`
    -   `use_l10n`
    -   `utils_timezone`

If you see any new changes, or had them previously disabled, please
report an issue so we can extra tests to the test suite.

`PR #&#8203;465
<https://github.com/adamchainz/django-upgrade/pull/465>`\__.

</details>

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.pre-commit-config.yaml

@@ -42,7 +42,7 @@ repos:
         args: [--py38-plus]
 
   - repo: https://github.com/adamchainz/django-upgrade
-    rev: 1.18.0
+    rev: 1.19.0
     hooks:
       - id: django-upgrade
         args: [--target-version, "4.2"]