`ignorePatterns` appears to be ignored when `reportingScope=workspace`

[sbreakey]

Diagnostic Data

• Python version (& distribution if applicable, e.g., Anaconda): Python 3.12.8
• Type of virtual environment used (e.g., conda, venv, virtualenv, etc.): venv (via poetry)
• Operating system (and version): MacOS 15.3.2
• Version of tool extension you are using: 2025.2.0

Behaviour

Expected Behavior

ignorePatterns should be applied when mypy-type-checker.reportingScope is set to workspace.

Actual Behavior

ignorePatterns is not be applied when mypy-type-checker.reportingScope is set to workspace.

Reproduction Steps:

1. create a workspace
2. add a foo.py in the root, with a deliberate type error
3. ensure mypy-type-checker.reportingScope is set to file
4. observe a warning
5. set mypy-type-checker.ignorePatterns to ["${workspaceFolder}/foo.py"] (beware ignorePatterns glob is no longer relative to the project root #338, hence the ${workspaceFolder} prefix)
6. observe the warning disappear
7. set mypy-type-checker.reportingScope to workspace
8. observe the warning return.