Added implementation to exclude unauthorized streams from discovery

[akkumar-qlik]

Description of change

https://qlik-dev.atlassian.net/browse/SAC-30928
Excluded unauthorized streams from catalog during discovery
Added unit test case and updated integration test accordingly

Manual QA steps

• Discovery: Running
• Sync: Running
• Unit Tests: Running
• Integration test: Running

Risks

Rollback steps

• revert this branch

AI generated code

https://internal.qlik.dev/general/ways-of-working/code-reviews/#guidelines-for-ai-generated-code

• this PR has been written with the help of GitHub Copilot or another generative AI tool

[Copilot]

Pull request overview

This PR updates the tap’s discovery behavior to proactively detect 403-forbidden (unauthorized) streams and exclude them from the discovered catalog, only failing discovery when no parent streams are accessible. It also updates tests and bumps the package version/changelog accordingly.

Changes:

• Add per-stream access probing during discovery and prune streams (and children) that are inaccessible due to 403.
• Introduce BaseStream.check_access() to standardize the access probe behavior.
• Add unit tests for discovery access checks and update tap-tester expectations to allow excluding forbidden streams.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/unittests/test_discovery.py	Adds unit coverage for access checks, pruning behavior, and end-to-end discovery exclusions.
tests/base.py	Adds a metadata flag + helper to exclude forbidden streams from expected integration test stream sets.
tap_notion/streams/abstracts.py	Introduces BaseStream.check_access() to probe stream read permissions (treat 403 as inaccessible).
tap_notion/discover.py	Applies access checks before catalog construction and prunes inaccessible children from discovery output.
tap_notion/init.py	Wires the tap CLI discovery flow to pass the client into discover().
setup.py	Bumps version to 0.0.4.
CHANGELOG.md	Documents the new discovery exclusion behavior in 0.0.4.