Bump python-arango from 7.3.4 to 8.3.2 in /scanners/domain-discovery

Bumps [python-arango](https://github.com/arangodb/python-arango) from 7.3.4 to 8.3.2.
- [Release notes](https://github.com/arangodb/python-arango/releases)
- [Commits](arangodb/python-arango@7.3.4...8.3.2)

---
updated-dependencies:
- dependency-name: python-arango
  dependency-version: 8.3.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

scanners/domain-discovery/requirements.txt

@@ -1,4 +1,4 @@
-python-arango==7.3.4
+python-arango==8.3.2
 python-dotenv==1.2.2
 nats-py==2.6.0
 dnspython==2.6.1