VPC support for Grafana workspaces

[DrFaust92]

Description

Relations

Closes #28244

References

Output from Acceptance Testing

$ make testacc TESTS=TestAccGrafana_serial/Workspace/vpc  PKG=grafana

--- PASS: TestAccGrafana_serial (758.78s)
    --- PASS: TestAccGrafana_serial/Workspace (758.78s)
        --- PASS: TestAccGrafana_serial/Workspace/vpc (758.78s)

[github-actions]

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[ewbankkit]

LGTM 🚀.

% make testacc TESTARGS='-run=TestAccGrafana_serial/Workspace/vpc\|TestAccGrafana_serial/Workspace/saml' PKG=grafana ACCTEST_PARALLELISM=3
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/grafana/... -v -count 1 -parallel 3  -run=TestAccGrafana_serial/Workspace/vpc\|TestAccGrafana_serial/Workspace/saml -timeout 180m
=== RUN   TestAccGrafana_serial
=== RUN   TestAccGrafana_serial/Workspace
=== RUN   TestAccGrafana_serial/Workspace/saml
=== RUN   TestAccGrafana_serial/Workspace/vpc
--- PASS: TestAccGrafana_serial (906.03s)
    --- PASS: TestAccGrafana_serial/Workspace (906.03s)
        --- PASS: TestAccGrafana_serial/Workspace/saml (374.17s)
        --- PASS: TestAccGrafana_serial/Workspace/vpc (531.86s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/grafana	914.236s

[ewbankkit]

@DrFaust92 Thanks for the contribution 🎉 👏.

[github-actions]

This functionality has been released in v4.47.0 of the Terraform AWS 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!

[bennylu2]

👋 New to provider code, hoping you could answer some questions for clarity. What does this do? I've been seeing it in tests and occasionally they have another test step after but as well. Also why if there's another step, is it always after this block?

[github-actions]

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