Update attackcti requirement from ^0.4.0 to >=0.4,<0.6

Updates the requirements on [attackcti](https://github.com/OTRF/ATTACK-Python-Client) to permit the latest version.
- [Release notes](https://github.com/OTRF/ATTACK-Python-Client/releases)
- [Changelog](https://github.com/OTRF/ATTACK-Python-Client/blob/master/CHANGELOG.md)
- [Commits](OTRF/ATTACK-Python-Client@0.4.0...0.5.4)

---
updated-dependencies:
- dependency-name: attackcti
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -18,7 +18,7 @@ PyYAML = "^6.0.2"
 requests = "~2.32.3"
 pycvesearch = "^1.2"
 xmltodict = ">=0.13,<0.15"
-attackcti = "^0.4.0"
+attackcti = ">=0.4,<0.6"
 Jinja2 = "^3.1.4"
 questionary = "^2.0.1"
 docker = "^7.1.0"