Bump black from 22.12.0 to 26.3.1 in /dpdk/dts

Bumps [black](https://github.com/psf/black) from 22.12.0 to 26.3.1.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@22.12.0...26.3.1)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 26.3.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

dpdk/dts/poetry.lock

@@ -28,7 +28,7 @@ scapy = "^2.5.0"
 
 [tool.poetry.group.dev.dependencies]
 mypy = "^0.961"
-black = "^22.6.0"
+black = "^26.3.1"
 isort = "^5.10.1"
 pylama = "^8.4.1"
 pyflakes = "^2.5.0"