feat: add coderd_organization data source

[ethanndickson]

Whilst not really part of the MVP, this makes managing groups through Terraform (such as for our integration tests) a lot nicer, since we can reference the default organisation as a data source.
It does, however, require bumping the coder version to v2.13.

[ethanndickson]

• fix: support non-enterprise template resources #47
• chore: add template resource trace logging #44
• chore: add uuid terraform type #43
• feat: add coderd_template resource #35
• chore: add groups to integration test #34
• feat: add coderd_organization data source #33 👈
• feat: add coderd_group data source #32
• feat: add coderd_group resource #31
• main

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[ethanndickson]

Failing CI is due to the v2.13 tag being deleted and recreated, see Slack.

[ethanndickson]

I made a comment on the UX of this in #34

[deansheather]

I think is_default is going to become irrelevant very shortly, so we should just stick to ID and name since those will stick around. When orgs get actually released I don't think there will be a "default org" anymore as the concept only exists for placing users into the only existing org.

For now you should just allow id = "default" (rather than name = "default")

[ethanndickson]

Even though it'll be irrelevant shortly, we need to stick with it for the time being. Terraform will always complain if you try to set an attribute to a value that differs from what it was configured to. In this case, we'd need to have a special case to not write the actual ID of the org to the id attribute.

[ethanndickson]

I'm just going to keep the is_default for now, and we'll end up finalizing it with the rest of the organization implementation.