chore(deps): Bump signxml from 4.1.0 to 4.2.0

Bumps [signxml](https://github.com/XML-Security/signxml) from 4.1.0 to 4.2.0.
- [Release notes](https://github.com/XML-Security/signxml/releases)
- [Changelog](https://github.com/XML-Security/signxml/blob/main/Changes.rst)
- [Commits](XML-Security/signxml@v4.1.0...v4.2.0)

---
updated-dependencies:
- dependency-name: signxml
  dependency-version: 4.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.in

@@ -19,5 +19,5 @@ pydantic==2.11.7
 pyOpenSSL==25.1.0
 pytz==2025.2
 setuptools==80.9.0
-signxml==4.1.0
+signxml==4.2.0
 typing-extensions==4.14.0

requirements.txt

@@ -64,7 +64,7 @@ rpds-py==0.19.0
     # via
     #   jsonschema
     #   referencing
-signxml==4.1.0
+signxml==4.2.0
     # via -r requirements.in
 sqlparse==0.5.0
     # via django