Skip instance migrate tests, they handle config directly

[slevenick]

Because these tests don't use resource.Test and instead manually create *Config objects they never properly call the ConfigureFunc on the config, preventing VCR transport swapping

Skip Bigtable tests that use a client factory that takes the raw TokenSource to produce new clients on demand within the resource rather than using the shared HTTP client

Release Note Template for Downstream PRs (will be copied)

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 1 file changed, 2 insertions(+))
Terraform Beta: Diff ( 1 file changed, 2 insertions(+))

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 6 files changed, 32 insertions(+))
Terraform Beta: Diff ( 6 files changed, 32 insertions(+))

[danawillow]

do you also need a skip on the app profile generated tests?
(also the comment is mostly true, but this resource and the IAM ones I think do use the shared HTTP client, it's just that their tests also create instances, which don't)

[slevenick]

Yeah, app profile tests set up an instance. I'll change the note to reference the bigtable instance only

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 6 files changed, 32 insertions(+))
Terraform Beta: Diff ( 6 files changed, 32 insertions(+))

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 6 files changed, 32 insertions(+))
Terraform Beta: Diff ( 6 files changed, 32 insertions(+))