Add task metadata

[jluethi]

We're adding metadata to the tasks to be able to build better task interfaces. I've created this PR to show how this metadata is structured. The core fields for each task are:

1. Category: Conversion, Segmentation, Registration, Measurement, Image Processing
2. Modality: HCS, lightsheet, EM
3. Tags: Arbitrary strings that are searchable and provide info about the task

Category & Modality work by convention, but you can add new entries when useful.

Additionally, there is now an "authors" field for the whole package.

In order for the future public Fractal page to list your tasks (see fractal-analytics-platform/fractal-analytics-platform.github.io#6), the package needs to either be on PyPI or have github releases with whl files. As part of this PR, I'm adding a Github CI that would run tests and create releases with whl files upon tags.

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Other additions:

1. Update faim-ipa version to 0.9.2 => make parsing robust to whether a TimePoint folder exists or not
2. Update fractal-tasks-core version to 1.3.3