Bump astroid from 3.0.3 to 3.1.0 in /external/price_server

Bumps [astroid](https://github.com/pylint-dev/astroid) from 3.0.3 to 3.1.0.
- [Release notes](https://github.com/pylint-dev/astroid/releases)
- [Changelog](https://github.com/pylint-dev/astroid/blob/main/ChangeLog)
- [Commits](pylint-dev/astroid@v3.0.3...v3.1.0)

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

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

external/price_server/requirements.txt

@@ -1,4 +1,4 @@
-astroid==3.0.3
+astroid==3.1.0
 backoff==2.2.1
 blinker==1.7.0
 click==8.1.7