Support new AWS Asia Pacific (Malaysia) Region ap-southeast-5 in data sources

[ewbankkit]

Description

Adds data source support for the new AWS Region ap-southeast-5.

Relations

Closes #38989.

Output from Acceptance Testing

% make testacc TESTARGS='-run=TestAccELBV2HostedZoneIDDataSource_' PKG=elbv2
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.22.6 test ./internal/service/elbv2/... -v -count 1 -parallel 20  -run=TestAccELBV2HostedZoneIDDataSource_ -timeout 360m
=== RUN   TestAccELBV2HostedZoneIDDataSource_basic
=== PAUSE TestAccELBV2HostedZoneIDDataSource_basic
=== CONT  TestAccELBV2HostedZoneIDDataSource_basic
--- PASS: TestAccELBV2HostedZoneIDDataSource_basic (18.20s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/elbv2	23.233s

% make testacc TESTARGS='-run=TestAccELBHostedZoneIDDataSource_' PKG=elb
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.22.6 test ./internal/service/elb/... -v -count 1 -parallel 20  -run=TestAccELBHostedZoneIDDataSource_ -timeout 360m
=== RUN   TestAccELBHostedZoneIDDataSource_basic
=== PAUSE TestAccELBHostedZoneIDDataSource_basic
=== CONT  TestAccELBHostedZoneIDDataSource_basic
--- PASS: TestAccELBHostedZoneIDDataSource_basic (10.10s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/elb	15.040s

% make testacc TESTARGS='-run=TestAccS3BucketDataSource_basic' PKG=s3
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.22.6 test ./internal/service/s3/... -v -count 1 -parallel 20  -run=TestAccS3BucketDataSource_basic -timeout 360m
=== RUN   TestAccS3BucketDataSource_basic
=== PAUSE TestAccS3BucketDataSource_basic
=== CONT  TestAccS3BucketDataSource_basic
--- PASS: TestAccS3BucketDataSource_basic (13.67s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/s3	18.709s

[github-actions]

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[jar-b]

LGTM 🚀

[github-actions]

This functionality has been released in v5.65.0 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!