Fix TestAccDataprocCluster_AttachedDiskConfigWorker

[SirGitsalot]

The main point of this PR is to fix the "Error 400: Permissions are missing for the default service account" error by putting the cluster into the same region as the buckets. Stockouts are still a big problem for the dataproc tests, but switching to c4-standard-2 might help with that.

Fixes hashicorp/terraform-provider-google#28701 (at least it fixes it locally, we'll see what happens on CI) Does not fix the issue mentioned in the comment regarding oneof ... must be specified which I think is a different problem.

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit 08ebea6:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	1 file changed, 17 insertions(+), 10 deletions(-)
google-beta provider	View Diff	1 file changed, 17 insertions(+), 10 deletions(-)

Test report

Analytics

Total Tests	Passed	Skipped	Affected
91	84	6	1

Affected Service Packages

• dataproc

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Found 1 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit.

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• TestAccDataprocCluster_AttachedDiskConfigWorker

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Recording Mode	Replaying Rerun	Test Name
✅ Log	✅	TestAccDataprocCluster_AttachedDiskConfigWorker

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@SirGitsalot VCR tests complete for 08ebea6!