chore(deps): Bump pytest-asyncio in /demo/playground/examples (openwallet-foundation#3620)

Bumps [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) from 0.25.3 to 0.26.0.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v0.25.3...v0.26.0)

---
updated-dependencies:
- dependency-name: pytest-asyncio
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Stephen Curran <swcurran@gmail.com>

Author: dependabot[bot]

demo/playground/examples/poetry.lock

@@ -8,7 +8,7 @@ package-mode=false
 [tool.poetry.dependencies]
 python = "^3.12"
 pytest = "^8.3.4"
-pytest-asyncio = "^0.25.3"
+pytest-asyncio = "^0.26.0"
 requests = "^2.32.3"
 
 [build-system]