plugin(3scale): migration of 3scale plugin to backstage/community-plugins workspace

[04kash]

Hey, I just made a Pull Request!

The 3scale-backend plugin from the janus-idp/backstage-plugins repository was migrated to the community plugins. The migration was performed by following the manual migration steps outlined in the Community Plugins CONTRIBUTING guide

:heavy_check_mark: Checklist

• [ ] A changeset describing the change and affected packages. (more info)
• [ ] Added or updated documentation
• [ ] Tests for new functionality and regression tests for bug fixes
• [ ] Screenshots attached (for UI changes)
• [ ] All your commits have a Signed-off-by line in the message. (more info)

[backstage-goalie[bot]]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
@backstage-community/plugin-3scale-backend	workspaces/3scale/plugins/3scale-backend	patch	v1.8.0