Bump itsdangerous from 2.1.2 to 2.2.0 in /external/price_server

Bumps [itsdangerous](https://github.com/pallets/itsdangerous) from 2.1.2 to 2.2.0.
- [Release notes](https://github.com/pallets/itsdangerous/releases)
- [Changelog](https://github.com/pallets/itsdangerous/blob/main/CHANGES.rst)
- [Commits](pallets/itsdangerous@2.1.2...2.2.0)

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

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

external/price_server/requirements.txt

@@ -12,7 +12,7 @@ gunicorn==21.2.0
 importlib-metadata==6.11.0
 install==1.3.5
 isort==5.13.2
-itsdangerous==2.1.2
+itsdangerous==2.2.0
 Jinja2==3.1.3
 lazy-object-proxy==1.10.0
 MarkupSafe==2.1.5