Bump python from `7476637` to `2586dd7` #2449

Job	Run time
calico-tests	2m 29s
fw-rules-assertion-tests	1m 8s
build_package	24s
calico-tests-orig-vs-opt-comparison	57s
istio-tests	1m 21s
istio-tests-orig-vs-opt-comparison	1m 24s
k8s-tests	2m 17s
k8s-tests-orig-vs-opt-comparison	2m 45s
lint	20s
test-docker	24s
test-docker-ubi	43s
unit-tests	16s
test_package	18s
	14m 46s

Provide feedback