Resolve Issue #311 and #310

[EashanKaushik]

Issue #, if available:
#310 and #311
Description of changes:

1. Removed "Action": "Bedrock:InvokeMode" from lambda roles. Affected files:
   a. 01-create-agent-with-function-definition.ipynb
   b. 02-create-agent-with-api-schema.ipynb
   c. 03-create-agent-with-return-of-control.ipynb
   d. 06-prompt-and-session-attributes.ipynb
   e. 07-custom-prompt-and-lambda-parsers.ipynb
   f. 08-create-agent-with-guardrails/agent.py
   g. 10-create-agent-with-memory.ipynb

2. Renamed Agent in agents-for-bedrock/features-examples/06-prompt-and-session-attributes/06-prompt-and-session-attributes.ipynb to hr-assistant-attributes to resolve conflicts.

3. Removed error in CRM agent.

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