Update ackdiscover version (#2509)

Issue #, if available: [2501](#2501)

Description of changes:
- Update docs scripts to use ackdiscover version with fixes for discovery of Bedrock Agent

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Author: knottnt

docs/requirements.txt

@@ -1,3 +1,3 @@
-acktools @ git+https://github.com/aws-controllers-k8s/test-infra.git@0585d0671b593e1b1a1d070614af41eb022c695a#subdirectory=tools
+acktools @ git+https://github.com/aws-controllers-k8s/test-infra.git@817a75417079e595b394e175c1463ebcec958f97#subdirectory=tools
 PyGitHub==1.55
 Jinja2==3.0.1