[UPDATE] Bump dict2xml from 1.7.2 to 1.7.3 (#592)

Bumps [dict2xml](https://github.com/delfick/python-dict2xml) from 1.7.2 to 1.7.3.
- [Release notes](https://github.com/delfick/python-dict2xml/releases)
- [Commits](https://github.com/delfick/python-dict2xml/compare/release-1.7.2...release-1.7.3)

---
updated-dependencies:
- dependency-name: dict2xml
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

pyproject.toml

@@ -44,7 +44,7 @@ sentry-sdk = "^1.19.1"
 pygraphviz = "^1.9"
 Jinja2 = "^3.1"
 django-countries = "^7.4.2"
-dict2xml = "^1.7.2"
+dict2xml = "^1.7.3"
 
 # Extra optional dependencies
 coverage = {version = "^5.5", optional = true}