build(deps-dev): bump nuitka from 2.5.4 to 2.5.6

Bumps [nuitka](https://github.com/Nuitka/Nuitka) from 2.5.4 to 2.5.6.
- [Changelog](https://github.com/Nuitka/Nuitka/blob/develop/Changelog.rst)
- [Commits](https://github.com/Nuitka/Nuitka/compare/2.5.4...2.5.6)

---
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

@@ -444,10 +444,10 @@
         },
         "nuitka": {
             "hashes": [
-                "sha256:52f3ec8df460d567362d3adf9e722534e07f4cc7bf51c2da874c86ba4103c6c1"
+                "sha256:14b859ae95a12021d72e016365354578bd73d3d4aa4430f1dd54d649352a1f79"
             ],
             "index": "pypi",
-            "version": "==2.5.4"
+            "version": "==2.5.6"
         },
         "ordered-set": {
             "hashes": [