added enum UPGRADE_INFO_EVENT for notification filter

[yliaog]

container: added enum UPGRADE_INFO_EVENT for GKE notification filter

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container: added enum  value `UPGRADE_INFO_EVENT` for GKE notification filter in `google_container_cluster` resource

[github-actions]

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

google provider: Diff ( 3 files changed, 5 insertions(+), 5 deletions(-))
google-beta provider: Diff ( 3 files changed, 5 insertions(+), 5 deletions(-))

[modular-magician]

Tests analytics

Total tests: 225
Passed tests: 214
Skipped tests: 11
Affected tests: 0

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• container

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