azurerm_logic_app_standard - add default values to worker runtime

[ziyeqf]

add default values to worker runtime to fixes #18123, #18017 and #16292

It seems to be a breaking change.

test

TF_ACC=1 go test -v  ./internal/services/logic -run=TestAccLogicAppStandard_appSettingsWorkerRuntime -timeout=60m
=== RUN   TestAccLogicAppStandard_appSettingsWorkerRuntime
=== PAUSE TestAccLogicAppStandard_appSettingsWorkerRuntime
=== CONT  TestAccLogicAppStandard_appSettingsWorkerRuntime
--- PASS: TestAccLogicAppStandard_appSettingsWorkerRuntime (299.76s)
PASS
ok      github.com/hashicorp/terraform-provider-azurerm/internal/services/logic 299.774s

[github-actions]

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