Bump fast-xml-parser from 3.20.3 to 3.21.0

Bumps [fast-xml-parser](https://github.com/NaturalIntelligence/fast-xml-parser) from 3.20.3 to 3.21.0.
- [Release notes](https://github.com/NaturalIntelligence/fast-xml-parser/releases)
- [Changelog](https://github.com/NaturalIntelligence/fast-xml-parser/blob/master/docs/CHANGELOG.md)
- [Commits](NaturalIntelligence/fast-xml-parser@v3.20.3...v3.21.0)

---
updated-dependencies:
- dependency-name: fast-xml-parser
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -2,7 +2,7 @@
     "description": "Bloodhound is a Node.js package that allows you to retrieve tracking data from shipping carriers (DHL, FedEx, UPS, USPS) in a common format.",
     "dependencies": {
         "async": "~3.2.0",
-        "fast-xml-parser": "~3.20.0",
+        "fast-xml-parser": "~3.21.0",
         "moment-timezone": "~0.5.28",
         "node-geocoder": "~3.27.0",
         "petty-cache": "~3.2.0",