Update bicep download from GHCR #1810

Job	Run time
Sample tests (demo, true, demo, ./samples/demo/app.bicep, --application demo, tests/demo/demo.app...	2m 50s
Sample tests (demo, true, demo, ./samples/demo/app.bicep, --application demo, tests/demo/demo.app...	2m 34s
Sample tests (dapr, true, dapr, ./samples/dapr/dapr.bicep, true)	55s
Sample tests (dapr, true, dapr, ./samples/dapr/dapr.bicep, true)	2m 21s
Sample tests (volumes, true, myapp, ./samples/volumes/app.bicep, false)	1m 40s
Sample tests (volumes, true, myapp, ./samples/volumes/app.bicep, false)	1m 29s
Sample tests (eshop, true, eshop, ./samples/eshop/iac/eshop.bicep, tests/eshop/container.app.spec...	4m 28s
Sample tests (eshop, true, eshop, ./samples/eshop/iac/eshop.bicep, tests/eshop/container.app.spec...	4m 3s
Sample tests (eshop-azure, false, eshop-azure, ./samples/eshop/iac/eshop.bicep, -p platform=azure...	13s
Sample tests (eshop-azure, false, eshop-azure, ./samples/eshop/iac/eshop.bicep, -p platform=azure...	7s
Sample tests (eshop-aws, false, eshop-aws-6486839107-1, ./samples/eshop/iac/eshop.bicep, -p platf...	7s
Sample tests (eshop-aws, false, eshop-aws-6486839107-2, ./samples/eshop/iac/eshop.bicep, -p platf...	7s
	20m 54s

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