Bedrock Anthropic model listing

[lchoquel]

Before submitting

• I'm using the latest released version of the library
• I've searched open issues and found no duplicate

Describe the bug, tell us what went wrong

When running tests:
SKIPPED [1] tests/integration/pipelex/plugins/test_anthropic.py:31: Backend 'bedrock_anthropic' is not available or enabled

although Bedrock is enabled.

Reproduction snippet

No response

Library version

0.14.3

Python version

3.11.9

Operating system

No response

Stack trace / error output

Additional context & screenshots

No response

Would you like to help fix this issue?

Not at this time