chore: Replace 'AWS Bedrock' with 'Amazon Bedrock' in remaining files

## Description
AWS Bedrock should be consistently referred to as 'Amazon Bedrock' throughout the codebase. This issue tracks the remaining files that need to be updated.

## Files to Update

### 01-tutorials/06-AgentCore-observability/02-Agent-not-hosted-on-runtime/
- **CrewAI/**
- `CrewAI_Observability.ipynb`
- **Langgraph/**
- `Langgraph_Observability.ipynb`
- **Strands/**
- `Strands_Observability.ipynb`

### 02-use-cases/AWS-operations-agent/scripts/
- `README.md`
- `get-gateway.py`
- `get-target.py`
- `list-gateways.py`
- `list-targets.py`

### 02-use-cases/customer-support-assistant/
- `README.md`
- **scripts/**
- `agentcore_agent_runtime.py`

### 02-use-cases/text-to-python-ide/
- `README.md`
- `.env`
- **docs/**
- `README.md`
- `OVERVIEW.md`
- `SETUP.md`
- `ARCHITECTURE.md`

### 02-use-cases/video-games-sales-assistant/
- `README.md`
- **agentcore-strands-data-analyst-assistant/**
- `README.md`
- **amplify-video-games-sales-assistant-agentcore-strands/**
- `README.md`

### 03-integrations/agentic-frameworks/
- **adk/**
- `README.md`
- **autogen/**
- `README.md`
- **langgraph/**
- `README.md`
- **llamaindex/**
- `README.md`
- **openai-agents/**
- `README.md`
- **strands-agents/**
- `README.md`

## Summary
Total files to update: 26 files across multiple directories

## Acceptance Criteria
- [ ] All instances of 'AWS Bedrock' replaced with 'Amazon Bedrock'
- [ ] Consistent naming convention maintained across all documentation and code
- [ ] No functionality broken by the changes