fix: wait for pods to be ready before port-forwarding in MetricsHandlingE2E #6318

Job	Run time
check_format_and_unit_tests	1m 29s
build / Special integration tests (21)	2m 12s
build / Special integration tests (17)	2m 16s
build / Special integration tests (25)	2m 8s
build / httpclient-tests (vertx) / Integration tests (25, 1.32.0, vertx)	25m 38s
build / httpclient-tests (jdk) / Integration tests (25, 1.32.0, jdk)	26m 26s
build / httpclient-tests (jetty) / Integration tests (25, 1.32.0, jetty)	27m 46s
build / integration_tests (17, 1.33.1) / Integration tests (17, 1.33.1, vertx)	28m 20s
build / integration_tests (25, 1.30.12) / Integration tests (25, 1.30.12, vertx)	26m 20s
build / integration_tests (17, 1.30.12) / Integration tests (17, 1.30.12, vertx)	26m 16s
build / integration_tests (17, 1.32.4) / Integration tests (17, 1.32.4, vertx)	27m 6s
build / integration_tests (21, 1.31.8) / Integration tests (21, 1.31.8, vertx)	28m 27s
build / integration_tests (21, 1.30.12) / Integration tests (21, 1.30.12, vertx)	26m 13s
build / integration_tests (17, 1.31.8) / Integration tests (17, 1.31.8, vertx)	27m 53s
build / integration_tests (25, 1.32.4) / Integration tests (25, 1.32.4, vertx)	27m 54s
build / integration_tests (21, 1.33.1) / Integration tests (21, 1.33.1, vertx)	27m 47s
build / integration_tests (21, 1.32.4) / Integration tests (21, 1.32.4, vertx)	25m 51s
build / integration_tests (25, 1.31.8) / Integration tests (25, 1.31.8, vertx)	28m 10s
build / integration_tests (25, 1.33.1) / Integration tests (25, 1.33.1, vertx)	27m 38s
	6h 55m 50s

Provide feedback