chore(deps-dev): update pytest-asyncio requirement in /sdk

Updates the requirements on [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v1.3.0...v1.4.0)

---
updated-dependencies:
- dependency-name: pytest-asyncio
  dependency-version: 1.4.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

sdk/pyproject.toml

@@ -34,7 +34,7 @@ otel = [
 dev = [
     "pytest>=9.0.3",
     "pytest-cov>=7.1.0",
-    "pytest-asyncio>=1.3.0",
+    "pytest-asyncio>=1.4.0",
     "mypy>=2.1.0",
     "mypy-protobuf>=5.1.0",
     "ruff>=0.15.14",