Use standard DID exceptions in finders

[ponyisi]

The new version of the DID finder library has standard exceptions that are used to signal specific error conditions. This will allow us to fail requests when they make bad requests, see #927 .

[Copilot]

Pull Request Overview

This PR updates three DID finder services to use standardized exceptions from the DID finder library instead of generic exceptions. This change will enable proper error handling and allow the system to respond appropriately to different types of failures when processing dataset lookup requests.

Key changes:

• Replace generic exceptions with specific exception types: BadDatasetNameException, NoSuchDatasetException, and LookupFailureException
• Update dependency versions to servicex-did-finder-lib = "^3.1.1" to access the new exception types
• Add proper exception handling with try-catch blocks where needed

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
did_finder_xrootd/src/servicex_did_finder_xrootd/celery.py	Replaces RuntimeError with NoSuchDatasetException and adds exception handling for XRootD operations
did_finder_xrootd/pyproject.toml	Updates servicex-did-finder-lib dependency to version 3.1.1
did_finder_rucio/src/rucio_did_finder/rucio_adapter.py	Replaces generic exceptions and None returns with specific DID finder exceptions
did_finder_rucio/pyproject.toml	Updates servicex-did-finder-lib dependency to version 3.1.1
did_finder_cernopendata/src/did_finder_cernopendata/celery.py	Replaces generic Exception with specific exceptions and adds error code-based exception handling
did_finder_cernopendata/pyproject.toml	Updates servicex-did-finder-lib dependency to version 3.1.1

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[Copilot]

Pull Request Overview

Copilot reviewed 10 out of 13 changed files in this pull request and generated no new comments.

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