Bump pytest from 8.4.2 to 9.0.0

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.4.2 to 9.0.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.4.2...9.0.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 9.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -7,7 +7,7 @@ name = "tuf-conformance"
 dependencies = [
     "securesystemslib[crypto]==1.3.1",
     "tuf==6.0.0",
-    "pytest==8.4.2",
+    "pytest==9.0.0",
     "pytest-json-report==1.5.0"
 ]
 dynamic = ["version"]