EventBusPolicy updates fail

[eli88fine]

What happened?

When making any change to an existing cloudwatch.EventBusPolicy, the policy just disappears in AWS (it still exists in Pulumi state).

This happens even when the delete_before_replace option is used (which should probably just be set to True by default, since inherantly within AWS only 1 of these can exist per EventBus at a time)

Steps to reproduce

sample code from docs should work just fine https://www.pulumi.com/registry/packages/aws/api-docs/cloudwatch/eventbuspolicy/

import pulumi_aws as aws

test_policy_document = aws.iam.get_policy_document(statements=[aws.iam.GetPolicyDocumentStatementArgs(
    sid="DevAccountAccess",
    effect="Allow",
    actions=["events:PutEvents"],
    resources=["arn:aws:events:eu-west-1:123456789012:event-bus/default"],
    principals=[aws.iam.GetPolicyDocumentStatementPrincipalArgs(
        type="AWS",
        identifiers=["123456789012"],
    )],
)])
test_event_bus_policy = aws.cloudwatch.EventBusPolicy("testEventBusPolicy",
    policy=test_policy_document.json,
    event_bus_name='default',
opts=ResourceOptions(
                delete_before_replace=True,
             )
)

run an up, then make any change (such as testEventBusPolicy->testEventBusPolicy2) and run up again

Expected Behavior

policy within AWS still exists

Actual Behavior

the policy completely disappears within AWS. presumably because of a bug where delete_before_replace is not actually operating correctly

Output of pulumi about

CLI          
Version      3.38.0
Go Version   go1.19
Go Compiler  gc

Host     
OS       debian
Version  10.12
Arch     x86_64


NAME        KIND      VERSION  SIZE    INSTALLED   LAST USED
aws         resource  5.13.0   412 MB  1 week ago  1 week ago
aws-native  resource  0.22.0   84 MB   1 week ago  1 week ago
command     resource  0.4.1    24 MB   1 week ago  1 week ago

Additional context

No response

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