feat(cat-gateway): Add Chain Follower metrics to improve observability #6152

Job	Run time
ci / discover	20s
ci / check / .+check-markdown	1m 45s
ci / check / .+check-spelling	1m 20s
ci / check / .+check-sqlfluff	1m 20s
ci / check / ./catalyst-gateway+check	1m 4s
ci / check / ./catalyst-gateway+check-builder-src-cache	2m 29s
ci / check / ./catalyst_voices+check-code-formatting	2m 21s
ci / check / ./catalyst_voices+check-license	1m 22s
ci / check / ./catalyst_voices+check-package-publishing	36s
ci / check / ./catalyst_voices+check-static-analysis	2m 43s
ci / check / ./catalyst_voices/packages/libs/catalyst_key_derivation/rust+check	45s
ci / check / ./utilities/wallet-tester+check	27s
ci / build	0s
ci / package	0s
ci / test	0s
ci / docs	0s
ci / release	0s
ci / final	5s
ci / deploy	0s
test_reporting / Generate test reports	6m 24s
test_reporting / Generate coverage report	0s
test_reporting / Generate allure report	0s
test_reporting / Upload coverage report	2s
	23m 3s

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