chore(deps-dev): bump the test group across 1 directory with 3 updates (#29)

Updates the requirements on [pytest](https://github.com/pytest-dev/pytest), [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) and [pytest-cov](https://github.com/pytest-dev/pytest-cov) to permit the latest version.

Updates `pytest` to 9.0.3
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.0.0...9.0.3)

Updates `pytest-asyncio` to 1.3.0
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v1.0.0...v1.3.0)

Updates `pytest-cov` to 7.1.0
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v6.0.0...v7.1.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.3
  dependency-type: direct:development
  dependency-group: test
- dependency-name: pytest-asyncio
  dependency-version: 1.3.0
  dependency-type: direct:development
  dependency-group: test
- dependency-name: pytest-cov
  dependency-version: 7.1.0
  dependency-type: direct:development
  dependency-group: test
...

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

Author: dependabot[bot]

pyproject.toml

@@ -31,9 +31,9 @@ my-mcp-server = "my_mcp_server.server:main"
 [project.optional-dependencies]
 # Major-bounded so a breaking ruff/mypy/pytest release can't turn CI red overnight.
 dev = [
-    "pytest>=8,<10",
-    "pytest-asyncio>=1,<2",
-    "pytest-cov>=6,<8",
+    "pytest>=9.0.3,<10",
+    "pytest-asyncio>=1.3.0,<2",
+    "pytest-cov>=7.1.0,<8",
     "ruff>=0.15,<1",
     "mypy>=2,<3",
 ]