chore(deps): update dependency pytest to v9 (#526)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [pytest](https://github.com/pytest-dev/pytest) ([changelog](https://docs.pytest.org/en/stable/changelog.html)) | `<9.0.0,>=8.3.4` -> `<9.1.0,>=9.0.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/pytest/9.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/pytest/8.4.2/9.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>pytest-dev/pytest (pytest)</summary>

### [`v9.0.0`](https://github.com/pytest-dev/pytest/compare/8.4.2...9.0.0)

[Compare Source](https://github.com/pytest-dev/pytest/compare/8.4.2...9.0.0)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

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Reviewed-on: #526
Co-authored-by: renovate[bot] <renovate-bot@git.tainton.uk>
Co-committed-by: renovate[bot] <renovate-bot@git.tainton.uk>

pyproject.toml

@@ -20,7 +20,7 @@ dev = [
     "isort<7.0.1,>=7.0.0",
     "pylint<4.1.0,>=4.0.0",
     "pylint-exit<2.0.0,>=1.2.0",
-    "pytest<9.0.0,>=8.3.4",
+    "pytest<9.1.0,>=9.0.0",
     "pre-commit<5.0.0,>=4.0.1",
 ]
 

uv.lock

@@ -494,7 +494,7 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "8.4.2"
+version = "9.0.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
@@ -503,9 +503,9 @@ dependencies = [
     { name = "pluggy" },
     { name = "pygments" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/a3/5c/00a0e072241553e1a7496d638deababa67c5058571567b92a7eaa258397c/pytest-8.4.2.tar.gz", hash = "sha256:86c0d0b93306b961d58d62a4db4879f27fe25513d4b969df351abdddb3c30e01", size = 1519618, upload-time = "2025-09-04T14:34:22.711Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/da/1d/eb34f286b164c5e431a810a38697409cca1112cee04b287bb56ac486730b/pytest-9.0.0.tar.gz", hash = "sha256:8f44522eafe4137b0f35c9ce3072931a788a21ee40a2ed279e817d3cc16ed21e", size = 1562764, upload-time = "2025-11-08T17:25:33.34Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/a8/a4/20da314d277121d6534b3a980b29035dcd51e6744bd79075a6ce8fa4eb8d/pytest-8.4.2-py3-none-any.whl", hash = "sha256:872f880de3fc3a5bdc88a11b39c9710c3497a547cfa9320bc3c5e62fbf272e79", size = 365750, upload-time = "2025-09-04T14:34:20.226Z" },
+    { url = "https://files.pythonhosted.org/packages/72/99/cafef234114a3b6d9f3aaed0723b437c40c57bdb7b3e4c3a575bc4890052/pytest-9.0.0-py3-none-any.whl", hash = "sha256:e5ccdf10b0bac554970ee88fc1a4ad0ee5d221f8ef22321f9b7e4584e19d7f96", size = 373364, upload-time = "2025-11-08T17:25:31.811Z" },
 ]
 
 [[package]]
@@ -664,7 +664,7 @@ dev = [
     { name = "pre-commit", specifier = ">=4.0.1,<5.0.0" },
     { name = "pylint", specifier = ">=4.0.0,<4.1.0" },
     { name = "pylint-exit", specifier = ">=1.2.0,<2.0.0" },
-    { name = "pytest", specifier = ">=8.3.4,<9.0.0" },
+    { name = "pytest", specifier = ">=9.0.0,<9.1.0" },
 ]
 
 [[package]]