feat(Construct): replace custom resource with bedrock L1 constructs

[dineshSajwan]

Fixes #361

1. Removed custom resource from bedrock construct.
2. removed custom resource policies from the construct.
3. Upgraded CDK version to 2.141.0
4. Removed knowledge based storage type Redis Enterprise since it is not supported by L1 Constructs
5. Added bedrock L1 construct for datasource , knowledge base, agent and agent alias.
6. Updated test cases for bedrock conctruct
7. Updated agent addAction group and addKnowledgebases method in agent.ts

---

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the project license.

[codecov]

Codecov Report

Attention: Patch coverage is 94.01198% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 93.07%. Comparing base (1ceb3f9) to head (3e4a874).

Files	Patch %	Lines
src/cdk-lib/bedrock/agent.ts	93.49%	8 Missing ⚠️
src/cdk-lib/bedrock/knowledge-base.ts	90.90%	7 Missing ⚠️
src/cdk-lib/bedrock/agent-alias.ts	88.23%	4 Missing ⚠️
src/cdk-lib/bedrock/s3-data-source.ts	94.11%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #414      +/-   ##
==========================================
- Coverage   93.29%   93.07%   -0.22%     
==========================================
  Files          50       47       -3     
  Lines       11420    11164     -256     
  Branches      255      358     +103     
==========================================
- Hits        10654    10391     -263     
- Misses        766      773       +7     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[krokoko]

Tested in TS, deployment of agents with KBs using OSS and Pinecone works as expected

Remaining tasks:

• keep possibility to pass kbs through the construct (call addKBs)
• Add KBs and add action groups should append to the list, not replace
• Aurora as a vector store fails to deploy:

Received response status [FAILED] from custom resource. Message returned: Error: Unable to import module 'custom_resources': No module named 'psycopg2._psycopg
'

Logs: /aws/lambda/***

at invokeUserFunction (/var/task/framework.js:2:6)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
at async onEvent (/var/task/framework.js:1:369)
at async Runtime.handler (/var/task/cfn-response.js:1:1676)


Runtime.ImportModuleError: Unable to import module 'custom_resources': No module named 'psycopg2._psycopg'�Traceback (most recent call last):

This issue is not related to the changes from this branch, and seems to happen on MacOS only. Will open a separate ticket for it

• Test and validate Python deployments

[krokoko]

• delete the file under 'public-registries'
• couple of commented tests which should be fixed
  otherwise should be good !