chore: Prepare release 3.3.1

[fsbraun]

Description

Related resources

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Checklist

• I have opened this pull request against master
• I have added or modified the tests when changing logic
• I have followed the conventional commits guidelines to add meaningful information into the changelog
• I have read the contribution guidelines and I have joined #workgroup-pr-review on
  Slack to find a “pr review buddy” who is going to review my pull request.

Summary by Sourcery

Chores:

• Update the project version to 3.3.1 in preparation for a new release.

[sourcery-ai]

Reviewer's Guide by Sourcery

This is a version bump PR that updates the package version from 3.3.0 to 3.3.1.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Version number update for release 3.3.1	Bumped version from 3.3.0 to 3.3.1	filer/__init__.py

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[sourcery-ai]

Hey @fsbraun - I've reviewed your changes - here's some feedback:

Overall Comments:

• Please add a brief description of what changes are included in this 3.3.1 release to help reviewers understand the context.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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