Fix priority in active plugin points

[aitorvs]

Task/Issue URL: https://app.asana.com/0/1198194956794324/1207400224799050/f

Description

Ensure that priority don't have grouping separators

Steps to test this PR

Test

• [ ] Apply changes in ContributesActivePluginPointCodeGeneratorTest and BarActivePlugin to develop
• [ ] verify ContributesActivePluginPointCodeGeneratorTest fails
• [ ] verify ContributesActivePluginPointCodeGeneratorTest passes in this branch

[aitorvs]

• #4581 👈
• develop

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