feat: location inverse control in bucket name prefix

[Tensho]

Right now the bucket location always appears in the name. It would be nice to have ful control over prefix via respective input variable. Moreover, I'd prefer to have the same for suffix too (there is already example described in example folder). But let's have incremental changes and dedicate this one to location in prefix exclusively.

This change introduces a contract change, ergo it's a breaking change. Major version release is required according to the semver.

Before

module "abc" {
  ...
  location = var.location
  prefix   = var.project_id
  ...
}

You get the location in the bucket name.

After

module "abc" {
  ...
  location = var.location
  prefix     = "${var.project_id}-${var.location}" # Inverse control of prefix value
  ...
}

[comment-bot-dev]

@Tensho Thanks for the PR! 🚀
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[Tensho]

Could we have this merged please?

[github-actions[bot]]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days

[Tensho]

@bharathkkb Hey, please could you check this out? PR has was marked as stale and I start to worry this change won't be addressed.

[g-awmalik]

Thanks for the PR @Tensho. Since this is a breaking change, can you also add an doc here detailing to upgrade to this version? Otherwise LGTM.

[Tensho]

@g-awmalik Added upgrade doc and rebase everything on the latest upstream master. Let me know if there's anything else you can think of.

[g-awmalik]

@g-awmalik Added upgrade doc and rebase everything on the latest upstream master. Let me know if there's anything else you can think of.

Sorry I should've been more clear. This change will go in v4.0 so we'll need a new doc upgrading_to_v4.0.md. Secondly, please explain with code snippets what a v3.x user would have to do to make sure they don't see any changes in their tf plan when they run this module with v4.0. Hopefully that gives you better direction.

[Tensho]

@g-awmalik Done.

[comment-bot-dev]

@Tensho Thanks for the PR! 🚀
✅ Lint checks have passed.