Add new aws_workspaces_pool resource and data source

[JaydonSunley]

This adds new resource & datasource aws_workspaces_pool.

Relations

Closes #38823

References

• https://docs.aws.amazon.com/workspaces/latest/api/API_WorkspacesPool.html
• https://docs.aws.amazon.com/workspaces/latest/api/API_CreateWorkspacesPool.html

Output from Acceptance Testing

% make testacc PKG=workspaces TESTS='TestAccWorkSpacesDataSource_serial/Pool|TestAccWorkSpaces_serial/Pool'
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.23.8 test ./internal/service/workspaces/... -v -count 1 -parallel 20 -run='TestAccWorkSpacesDataSource_serial/Pool|TestAccWorkSpaces_serial/Pool'  -timeout 360m -vet=off
2025/05/20 22:03:29 Initializing Terraform AWS Provider...
=== RUN   TestAccWorkSpacesDataSource_serial
=== PAUSE TestAccWorkSpacesDataSource_serial
=== RUN   TestAccWorkSpaces_serial
=== PAUSE TestAccWorkSpaces_serial
=== CONT  TestAccWorkSpacesDataSource_serial
=== CONT  TestAccWorkSpaces_serial
=== RUN   TestAccWorkSpacesDataSource_serial/Pool
=== RUN   TestAccWorkSpaces_serial/Pool
=== RUN   TestAccWorkSpacesDataSource_serial/Pool/basic
=== RUN   TestAccWorkSpaces_serial/Pool/basic
=== PAUSE TestAccWorkSpacesDataSource_serial/Pool/basic
=== CONT  TestAccWorkSpacesDataSource_serial/Pool/basic
=== PAUSE TestAccWorkSpaces_serial/Pool/basic
=== RUN   TestAccWorkSpaces_serial/Pool/disappears
=== PAUSE TestAccWorkSpaces_serial/Pool/disappears
=== RUN   TestAccWorkSpaces_serial/Pool/ApplicationSettings
=== PAUSE TestAccWorkSpaces_serial/Pool/ApplicationSettings
=== RUN   TestAccWorkSpaces_serial/Pool/TimeoutSettings
=== PAUSE TestAccWorkSpaces_serial/Pool/TimeoutSettings
=== RUN   TestAccWorkSpaces_serial/Pool/TimeoutSettings_maxUserDurationInSeconds
=== PAUSE TestAccWorkSpaces_serial/Pool/TimeoutSettings_maxUserDurationInSeconds
=== CONT  TestAccWorkSpaces_serial/Pool/basic
=== CONT  TestAccWorkSpaces_serial/Pool/TimeoutSettings
=== CONT  TestAccWorkSpaces_serial/Pool/ApplicationSettings
=== CONT  TestAccWorkSpaces_serial/Pool/disappears
=== CONT  TestAccWorkSpaces_serial/Pool/TimeoutSettings_maxUserDurationInSeconds
--- PASS: TestAccWorkSpacesDataSource_serial (126.13s)
    --- PASS: TestAccWorkSpacesDataSource_serial/Pool (0.00s)
        --- PASS: TestAccWorkSpacesDataSource_serial/Pool/basic (126.13s)
--- PASS: TestAccWorkSpaces_serial (166.02s)
    --- PASS: TestAccWorkSpaces_serial/Pool (0.00s)
        --- PASS: TestAccWorkSpaces_serial/Pool/TimeoutSettings_maxUserDurationInSeconds (120.77s)
        --- PASS: TestAccWorkSpaces_serial/Pool/basic (127.46s)
        --- PASS: TestAccWorkSpaces_serial/Pool/TimeoutSettings (145.19s)
        --- PASS: TestAccWorkSpaces_serial/Pool/ApplicationSettings (149.19s)
        --- PASS: TestAccWorkSpaces_serial/Pool/disappears (166.02s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/workspaces	171.397s
...

[github-actions]

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