Normalize project name by replacing underscore with dash

[edwardrf]

Description

To allow handling of project names with underscore in it in GCP provider

Linked Issues

Fixes https://github.com/DefangLabs/defang-mvp/issues/2533

Checklist

• I have performed a self-review of my code
• I have added appropriate tests
• I have updated the Defang CLI docs and/or README to reflect my changes, if necessary

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch edw/gcp-build-tag-project-name-underscore

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[lionello]

was expecting something generic, but this is GCP specific

[lionello]

to be removed

[edwardrf]

was expecting something generic, but this is GCP specific

The GCP specific parts are actually not related to the normalization, more of supporting it. The main changes are in the compose folder, which changes/normalizes the project name before sending it to deploy/tail/subscribe, which are provider agnostic.