Add maximise space action + add retry for http test #562

Job	Run time
Run Tests / Integration Test	28m 6s
Run Tests / Observability Integration Test	22m 32s
Publish Charm / Generate the Charm Matrix	5s
Run Tests / Lint Code (operator)	9s
Run Tests / Lint Code (serving)	12s
Run Tests / Unit Test (operator)	14s
Run Tests / Lint Code (eventing)	8s
Run Tests / Unit Test (serving)	12s
Run Tests / Unit Test (eventing)	12s
Run Tests / Check libraries / Check libraries	3s
Run Tests / Check libraries / Lint	11s
Run Tests / Terraform (eventing) / Apply	0s
Run Tests / Terraform (operator) / Apply	0s
Run Tests / Terraform (serving) / Apply	0s
Run Tests / Terraform (eventing) / Check / Check Terraform	6s
Run Tests / Terraform (eventing) / Lint / Lint Terraform	9s
Run Tests / Terraform (operator) / Check / Check Terraform	9s
Run Tests / Terraform (operator) / Lint / Lint Terraform	7s
Run Tests / Terraform (serving) / Lint / Lint Terraform	6s
Run Tests / Terraform (serving) / Check / Check Terraform	6s
Publish Charm / Publish Charm (./charms/knative-operator)	7m 33s
Publish Charm / Publish Charm (./charms/knative-serving)	3m 36s
Publish Charm / Publish Charm (./charms/knative-eventing)	3m 48s
	1h 7m 44s

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