Add support for the CustomEventData argument of GameLift Queues

[Luminoth]

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Closes #26205

Output from acceptance testing:

$ make testacc TESTS='TestAccGameLiftGameSessionQueue_' PKG=gamelift
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/gamelift/... -v -count 1 -parallel 20 -run='TestAccGameLiftGameSessionQueue_'  -timeout 180m
=== RUN   TestAccGameLiftGameSessionQueue_basic
--- PASS: TestAccGameLiftGameSessionQueue_basic (24.54s)
=== RUN   TestAccGameLiftGameSessionQueue_tags
--- PASS: TestAccGameLiftGameSessionQueue_tags (30.43s)
=== RUN   TestAccGameLiftGameSessionQueue_disappears
--- PASS: TestAccGameLiftGameSessionQueue_disappears (8.03s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/gamelift	63.076s
...