release/3.x: r/aws_sqs_queue: sqs_managed_sse_enabled computed

[ewbankkit]

Description

release/3.x backport of #26843.

Relations

Relates #22197.

Output from Acceptance Testing

% make testacc TESTARGS='-run=TestAccSQSQueue_basic' PKG=sqs
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/sqs/... -v -count 1 -parallel 20  -run=TestAccSQSQueue_basic -timeout 180m
=== RUN   TestAccSQSQueue_basic
=== PAUSE TestAccSQSQueue_basic
=== CONT  TestAccSQSQueue_basic
--- PASS: TestAccSQSQueue_basic (49.40s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/sqs	52.724s

[github-actions]

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