Hot fix for file IO crash

[Joseph-Ellaway]

The new parser read a file on initialisation, not the parsing step. Was causing app to crash.

[Copilot]

Pull request overview

Hotfix to prevent a crash caused by reading the post-processing input file during parser initialization, by deferring file I/O until the parsing step.

Changes:

• Bump package version from 3.2.0 to 3.2.1.
• Move JSON file reading from PostProcessor.__init__ to PostProcessor.parse().
• Update PostProcessComplexTable.parse() to call super().parse() before processing.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
uv.lock	Updates locked editable package version to 3.2.1.
pyproject.toml	Bumps project version to 3.2.1 for the hotfix release.
pisa_utils/post_process_parsers.py	Defers input JSON reading until parse() to avoid initialization-time file I/O crashes.

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[mihaitodor]

LGTM