Bump ubi8/ubi-minimal from `8d43664` to `2fa47fa` #2760

Job	Run time
test-docker-ubi	24s
lint	11s
unit-tests	10s
build_package	24s
calico-tests	34s
calico-tests-orig-vs-opt-comparison	39s
fw-rules-assertion-tests	29s
istio-tests	49s
istio-tests-orig-vs-opt-comparison	1m 12s
k8s-tests	1m 3s
k8s-tests-orig-vs-opt-comparison	1m 45s
test-docker	32s
test_package	11s
	8m 23s

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