MLPAB-2731: handle change confirmed events and add banners #9179

Job	Run time
Detect Changes / compare_changes	9s
TF Plan Dev Account / development account deployment	50s
Detect Changes / notify_previous_build_will_be_deployed	0s
Create Tags / pull_s3_av_tag	5s
Create Tags / create_tags	16s
Create Tags / generate_environment_workspace_name	2s
Create Tags / pull_tags	0s
Create Tags / consolidate_tags	4s
Run Go unit tests / run	2m 19s
TF Plan Prod Account / production account deployment	58s
TF Plan Preprod Account / preproduction account deployment	59s
Docker Build, Scan and Push	0s
Run Cypress UI Tests On Images	0s
PR Environment Deploy	0s
Run Cypress UI Tests On PR Environment	0s
End of PR Workflow	2s
Remove CI ingress from environment / remove_ingress	13s
	5m 57s

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