fix: Receiver template should not include the notification filter when verifying

Created by: xuliwenwenwen

Signed-off-by: xuliwenwenwen liwenxu@yunify.com

What type of PR is this?

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes ##kubesphere/kubesphere#4354

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Does this PR introduced a user-facing change?

None

Additional documentation, usage docs, etc.: