Improve Epoxy upgrade doc #5598

Job	Run time
Ansible 2.18 lint with Python 3.12	2m 15s
Tox releasenotes with Python 3.12	27s
Ansible 2.17 lint with Python 3.10	2m 15s
Tox docs with Python 3.12	23s
Tox pep8 with Python 3.12	30s
Check changed files	4s
Build Kayobe Image / Build kayobe image	0s
Check container image tags / Check container image tags	0s
aio (Rocky 9 OVS) / runner-selection / define_runner	2s
aio upgrade (Ubuntu Jammy to Noble OVN) / runner-selection / define_runner	4s
aio (Rocky 9 OVN) / runner-selection / define_runner	2s
aio upgrade (Rocky 9 OVN) / runner-selection / define_runner	4s
aio upgrade (Rocky 9 OVS) / runner-selection / define_runner	2s
aio (Ubuntu Noble OVN) / runner-selection / define_runner	4s
aio (Rocky 9 OVS) / All in one	0s
aio (Rocky 9 OVN) / All in one	-1s
aio upgrade (Rocky 9 OVN) / All in one	0s
aio (Ubuntu Noble OVN) / All in one	0s
aio upgrade (Rocky 9 OVS) / All in one	0s
aio upgrade (Ubuntu Jammy to Noble OVN) / All in one	-1s
	6m 10s

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