scripts: Fix net-istio version for 1.9 scanning #471

Job	Run time
Publish Charm / Generate the Charm Matrix	6s
Run Tests / Integration Test	36m 51s
Run Tests / Unit Test (operator)	44s
Run Tests / Lint Code (operator)	32s
Run Tests / Unit Test (serving)	23s
Run Tests / Observability Integration Test	34m 23s
Run Tests / Lint Code (serving)	23s
Run Tests / Unit Test (eventing)	25s
Run Tests / Lint Code (eventing)	21s
Run Tests / Check libraries / Check libraries	5s
Run Tests / Check libraries / Lint	12s
Publish Charm / Publish Charm (./charms/knative-serving)	13m 38s
Publish Charm / Publish Charm (./charms/knative-eventing)	13m 51s
Publish Charm / Publish Charm (./charms/knative-operator)	19m 4s
	2h 0m 58s

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