01-tutorials - [Bug] Failed to invoke agent endpoint: 424 Client Error: Failed Dependency for url

**In which component is this bug present?**

- [ ] 01-AgentCore-runtime
- [ ] 02-AgentCore-gateway
- [ ] 03-AgentCore-identity
- [ ] 04-AgentCore-memory
- [ ] 05-AgentCore-tools
- [ ] 06-AgentCore-observability
- [ X] 07-AgentCore-E2E

If you are reporting multiple bugs, please create a separate issue for each. For documentation improvements, use the documentation improvement issue type.

**Bug Description**
A clear and concise description of the bug.
```
In lab-04-agent-core-runtime-ipynb , I am hitting error `Failed to invoke agent endpoint: 424 Client Error: Failed Dependency for url` . This error occurs in "Invoking the agent with session continuity" as shown in screenshot.
I am running the jupyter notebook from Sagemaker studio, every step before this ran fine and I have agentcore runtime up an running. The invocation is failing for some reason mentioned above.

```

**Screenshots**
If applicable, add screenshots to help explain your problem.
```
Please provide screenshots here.

```