Adds prometheus export point to the agent pod. (#2983) #13968

Job	Run time
towncrier_check	7s
changed_files	10s
check_if_release_branch	1s
build mirrord CLI	0s
test_agent_image	6m 45s
integration_tests	14m 32s
lint	12m 28s
check-rust-docs	4m 6s
macos_tests	35m 34s
test_agent	3m 20s
test_cli_image	15m 41s
lint_markdown	0s
e2e (docker)	12m 22s
vscode_e2e_on_release_branch	0s
e2e (containerd)	12m 32s
intellij_e2e_on_release_branch	0s
ci	1s
	1h 57m 39s

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