Use vector in message sender

[StephenButtolph]

Why this should be merged

Old:

# HELP avalanche_P_app_request_failed_benched # of times a app_request request was not sent because the node was benched
# TYPE avalanche_P_app_request_failed_benched counter
avalanche_P_app_request_failed_benched 0
# HELP avalanche_P_get_accepted_failed_benched # of times a get_accepted request was not sent because the node was benched
# TYPE avalanche_P_get_accepted_failed_benched counter
avalanche_P_get_accepted_failed_benched 0
# HELP avalanche_P_get_accepted_frontier_failed_benched # of times a get_accepted_frontier request was not sent because the node was benched
# TYPE avalanche_P_get_accepted_frontier_failed_benched counter
avalanche_P_get_accepted_frontier_failed_benched 0
# HELP avalanche_P_get_accepted_state_summary_failed_benched # of times a get_accepted_state_summary request was not sent because the node was benched
# TYPE avalanche_P_get_accepted_state_summary_failed_benched counter
avalanche_P_get_accepted_state_summary_failed_benched 0
# HELP avalanche_P_get_ancestors_failed_benched # of times a get_ancestors request was not sent because the node was benched
# TYPE avalanche_P_get_ancestors_failed_benched counter
avalanche_P_get_ancestors_failed_benched 0
# HELP avalanche_P_get_failed_benched # of times a get request was not sent because the node was benched
# TYPE avalanche_P_get_failed_benched counter
avalanche_P_get_failed_benched 0
# HELP avalanche_P_get_state_summary_frontier_failed_benched # of times a get_state_summary_frontier request was not sent because the node was benched
# TYPE avalanche_P_get_state_summary_frontier_failed_benched counter
avalanche_P_get_state_summary_frontier_failed_benched 0
# HELP avalanche_P_pull_query_failed_benched # of times a pull_query request was not sent because the node was benched
# TYPE avalanche_P_pull_query_failed_benched counter
avalanche_P_pull_query_failed_benched 0
# HELP avalanche_P_push_query_failed_benched # of times a push_query request was not sent because the node was benched
# TYPE avalanche_P_push_query_failed_benched counter
avalanche_P_push_query_failed_benched 0

New:

How this works

Uses vectors rather than custom metrics.

How this was tested

• CI
• Fuji