pip(deps): bump xmlformatter from 0.2.4 to 0.2.6

Bumps [xmlformatter](http://pamoller.com/xmlformatter.html) from 0.2.4 to 0.2.6.

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

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

Author: dependabot[bot]

poetry.lock

@@ -27,7 +27,7 @@ jsonpath-rw = "^1.4.0"
 semver = "^3.0.2"
 gitpython = "^3.1.41"
 lxml = "^4.9.4"
-xmlformatter = "^0.2.4"
+xmlformatter = "^0.2.6"
 pytest-check = "^2.2.3"
 requests = "^2.31.0"
 openapi-core = "^0.18.2"