build(deps-dev): bump nuitka from 2.6.7 to 2.6.9

Bumps [nuitka](https://github.com/Nuitka/Nuitka) from 2.6.7 to 2.6.9.
- [Changelog](https://github.com/Nuitka/Nuitka/blob/develop/Changelog.rst)
- [Commits](https://github.com/Nuitka/Nuitka/compare/2.6.7...2.6.9)

---
updated-dependencies:
- dependency-name: nuitka
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Pipfile.lock

@@ -438,10 +438,10 @@
         },
         "nuitka": {
             "hashes": [
-                "sha256:c9d2db630560cf89dfbfd294dd860dd0540e03b74a0c21711ce64305727523bf"
+                "sha256:50e1d2fae48c32b0103850df5ad2ccdde7f3c736545681c0896a5ce233597a5d"
             ],
             "index": "pypi",
-            "version": "==2.6.7"
+            "version": "==2.6.9"
         },
         "ordered-set": {
             "hashes": [