Fix: rename `certificate_total_produced_since_startup` metric name in aggregator #7332

Job	Run time
build-docusaurus	1m 51s
build-open-api-ui	10s
build (macos-14)	1m 26s
build-test-wasm	1m 25s
build (macos-14-large)	2m 6s
build-ubuntu-X64	4m 30s
build (windows-latest)	3m 59s
cargo-doc	57s
check	1m 24s
test (ubuntu-22.04)	7m 44s
test (macos-14)	1m 14s
test (macos-14-large)	1m 19s
test (windows-latest)	2m 51s
publish-wasm-test (mithril-client-wasm)	55s
build-test-explorer	1m 4s
publish-docs	0s
e2e (std, thales, 9.0.0, 0, #1)	1m 18s
e2e (std, thales, 9.1.0, 0, #1)	1m 13s
e2e (std, thales, 9.1.1, 0, #1)	1m 12s
e2e (std, thales, 9.2.0, 0, #1)	1m 27s
e2e (std, thales, 9.2.1, 0, #1)	1m 42s
e2e (std, pythagoras, 9.0.0, 0, #1)	1m 11s
e2e (std, pythagoras, 9.1.0, 0, #1)	1m 13s
e2e (std, pythagoras, 9.1.1, 0, #1)	1m 14s
e2e (std, pythagoras, 9.2.0, 0, #1)	2m 0s
e2e (std, pythagoras, 9.2.1, 0, #1)	1m 43s
e2e (p2p, thales, 9.1.1, 0, #1, --use-p2p-network)	1m 34s
e2e (std, thales, pythagoras, 9.1.1, 0, #1)	1m 27s
e2e (std, thales, pythagoras, 9.1.1, 0, #1, --mithril-era-regenesis-on-switch)	1m 41s
send-tests-results	12s
publish-crate-test (mithril-stm)	17s
docker-mithril (mithril-aggregator)	31s
publish-crate-test (mithril-build-script)	13s
unstable-release	0s
docker-mithril (mithril-client-cli)	34s
publish-crate-test (mithril-common)	14s
docker-mithril (mithril-signer)	24s
docker-mithril (mithril-relay)	30s
publish-crate-test (mithril-client)	13s
deploy-testing (testing-preview)	14s
deploy-testing (testing-sanchonet)	14s
	55m 26s

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