Python: Fix URL parsing to handle trailing punctuation in deployment progress detection

[Copilot]

The URL extraction logic in the Azure Container Apps deployment manager was failing to correctly identify azurecontainerapps.io URLs when they appeared with trailing punctuation (e.g., in sentences ending with periods or followed by commas).

Changes

• Improved regex pattern: Changed from r'https://[^\s]+' to r'https://[^\s<>"]+' to exclude angle brackets and quotes that would never be part of a URL
• Added punctuation stripping: Strip common trailing punctuation (.,;:!?\'")}]) before hostname extraction via urlparse()

Example

# Before: These would fail to match
"Deployed to https://myapp.azurecontainerapps.io."  # hostname: "myapp.azurecontainerapps.io."
"Visit https://myapp.azurecontainerapps.io, thanks" # hostname: "myapp.azurecontainerapps.io,"

# After: Correctly extracts clean hostnames
url_clean = url.rstrip('.,;:!?\'")}]')  
host = urlparse(url_clean).hostname  # "myapp.azurecontainerapps.io"

This ensures deployment progress messages trigger correctly regardless of surrounding punctuation context.

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