R2 bucket

[Cyb3r-Jak3]

Adds basic management for R2 buckets.

Closes #1664.

[github-actions]

changelog detected ✅

[Cyb3r-Jak3]

Needs cloudflare/cloudflare-go#1265

[github-actions]

Marking this pull request as stale due to 14 days of inactivity. This helps our maintainers find and focus on the active pull requests. If this pull request receives no comments in the next 7 days it will automatically be closed. Maintainers can also remove the lifecycle/stale label.
If this pull request was automatically closed and you feel this pull request should be reopened, we encourage creating a new pull request linking back to this one for added context. Thank you!

[github-actions]

Marking this pull request as stale due to 14 days of inactivity. This helps our maintainers find and focus on the active pull requests. If this pull request receives no comments in the next 7 days it will automatically be closed. Maintainers can also remove the lifecycle/stale label.
If this pull request was automatically closed and you feel this pull request should be reopened, we encourage creating a new pull request linking back to this one for added context. Thank you!

[Cyb3r-Jak3]

Should be good once #2466 is merged.

[jacobbednarz]

acceptance tests all passing

TF_ACC=1 go test ./internal/framework/service/r2_bucket -v -count 1 -run ^TestAccCloudflareR2Bucket_ -timeout 120m -parallel 1
=== RUN   TestAccCloudflareR2Bucket_Basic
=== PAUSE TestAccCloudflareR2Bucket_Basic
=== RUN   TestAccCloudflareR2Bucket_Minimum
=== PAUSE TestAccCloudflareR2Bucket_Minimum
=== CONT  TestAccCloudflareR2Bucket_Basic
--- PASS: TestAccCloudflareR2Bucket_Basic (20.84s)
=== CONT  TestAccCloudflareR2Bucket_Minimum
--- PASS: TestAccCloudflareR2Bucket_Minimum (16.78s)
PASS
ok  	github.com/cloudflare/terraform-provider-cloudflare/internal/framework/service/r2_bucket	38.431s

[jacobbednarz]

i've also updated this PR to close #1664 as we don't want laundry list support issues. instead, we want specific issues that cover each part that can be tackled separately. the OP in the attached issue was after bucket support which we are adding here.

[github-actions]

This functionality has been released in v4.7.0 of the Terraform Cloudflare Provider.

Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!