Add support for AWS Lambda Python 3.12 runtime

[ewbankkit]

Description

Documents AWS Lambda support for the Python 3.12 runtime.

Relations

Closes #34944.

References

Output from Acceptance Testing

% make testacc TESTARGS='-run=TestAccLambdaFunction_runtimes' PKG=lambda
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/lambda/... -v -count 1 -parallel 20  -run=TestAccLambdaFunction_runtimes -timeout 360m
=== RUN   TestAccLambdaFunction_runtimes
=== PAUSE TestAccLambdaFunction_runtimes
=== CONT  TestAccLambdaFunction_runtimes
--- PASS: TestAccLambdaFunction_runtimes (496.18s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/lambda	501.983s

[github-actions]

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[github-actions]

This functionality has been released in v5.32.0 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!

[github-actions]

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