feat: metricsV2 + oTel + prometheus sample and Grafana dashboard #6295

Job	Run time
check_format_and_unit_tests	1m 24s
build / Special integration tests (21)	2m 19s
build / Special integration tests (17)	2m 23s
build / Special integration tests (25)	2m 19s
build / httpclient-tests (jdk) / Integration tests (25, 1.32.0, jdk)	25m 58s
build / httpclient-tests (vertx) / Integration tests (25, 1.32.0, vertx)	26m 27s
build / integration_tests (21, 1.30.12) / Integration tests (21, 1.30.12, vertx)	25m 43s
build / integration_tests (17, 1.31.8) / Integration tests (17, 1.31.8, vertx)	27m 17s
build / integration_tests (21, 1.32.4) / Integration tests (21, 1.32.4, vertx)	25m 42s
build / integration_tests (17, 1.32.4) / Integration tests (17, 1.32.4, vertx)	26m 29s
build / httpclient-tests (jetty) / Integration tests (25, 1.32.0, jetty)	26m 57s
build / integration_tests (17, 1.33.1) / Integration tests (17, 1.33.1, vertx)	27m 16s
build / integration_tests (25, 1.30.12) / Integration tests (25, 1.30.12, vertx)	25m 35s
build / integration_tests (25, 1.31.8) / Integration tests (25, 1.31.8, vertx)	27m 34s
build / integration_tests (17, 1.30.12) / Integration tests (17, 1.30.12, vertx)	25m 57s
build / integration_tests (21, 1.31.8) / Integration tests (21, 1.31.8, vertx)	27m 53s
build / integration_tests (21, 1.33.1) / Integration tests (21, 1.33.1, vertx)	27m 0s
build / integration_tests (25, 1.32.4) / Integration tests (25, 1.32.4, vertx)	27m 8s
build / integration_tests (25, 1.33.1) / Integration tests (25, 1.33.1, vertx)	28m 2s
	6h 49m 23s

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