fix(deps): update module gocloud.dev/pubsub/natspubsub to v0.28.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
gocloud.dev/pubsub/natspubsub	require	minor	v0.27.0 -> v0.28.0

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Release Notes

google/go-cloud

v0.28.0

Compare Source

BREAKING CHANGES:

• secrets/azurekeyvault: Updated to latest Azure SDK.
• blob/azureblob: Updated to match recent breaking changes in the Azure packages (yes, again).
• pubsub/awssnssqs: Fixed BeforeSend to take a pointer to the SendMessageBatchRequestEntry struct, so that it can be modified.

blob

• memblob: Fixed bug where use of BeforeCopy callback would drop the actual copying.
• azureblob: Updated to match recent breaking changes in the Azure packages.

pubsub

• all: Simplified and improved batch sizing, should resolve issues with too-frequent polling in some situations.
• azurepubsub: Made ListenerTimeout configurable.
• gcppubsub and awssnssqs: Support lazy mode for Nack (where no explicit Nack is sent).
• awssnssqs: Fixed BeforeSend to take a pointer to the SendMessageBatchRequestEntry struct, so that it can be modified.

secrets

• secrets/azurekeyvault: Updated to latest Azure SDK. Use azidentity.NewDefaultAzureCredential.

sql

• gcp/cloudsql: Fixed IAM login.

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