Add ecr image tag mutability variable for the ecr module

[jross-ai]

what

• Add ecr_image_tag_mutability as variable to pass into the ecr module as the image_tag_mutability variable

why

• Allow users to specify whether the ecr image tag should be mutable or immutable rather than relying on the default of immutable that is set in the ecr module

references

• closes Create image_tag_mutability variable to allow user to specify whether the ecr repository should be mutable or immutable #119

[Gowiem]

/test all

[jross-ai]

Is there an ETA for when this will be merged in?

[jross-ai]

Is there an ETA for when this will be merged in?

Following up here. Thanks for reviewing! Hoping to get this merged in soon :)