feat(version): v0.6.3

[GeekMasher]

No description provided.

[Copilot]

Pull Request Overview

Version bump from 0.6.2 to 0.6.3 across the project's configuration files and documentation to prepare for a new patch release.

• Updated version number from 0.6.2 to 0.6.3 in all relevant files
• Updated Docker image references to use the new version tag
• Updated GitHub Action references to use the new version tag

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
actions/Dockerfile	Updated base Docker image tag to 0.6.3
README.md	Updated GitHub Action usage example and Docker image references to 0.6.3
Cargo.toml	Updated package version to 0.6.3
.release.yml	Updated release configuration version to 0.6.3
.github/workflows/self-action.yml	Updated self-testing action reference to 0.6.3

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