improve: showcase initialized spec deleted when adding finalizer with SSA with same fieldManager #5720

Job	Run time
check_format_and_unit_tests	1m 13s
build / Special integration tests (21)	2m 27s
build / Special integration tests (25)	2m 13s
build / Special integration tests (17)	2m 21s
build / httpclient-tests (jetty) / Integration tests (25, 1.32.0, jetty)	22m 51s
build / httpclient-tests (vertx) / Integration tests (25, 1.32.0, vertx)	22m 53s
build / httpclient-tests (jdk) / Integration tests (25, 1.32.0, jdk)	23m 23s
build / integration_tests (17, 1.30.12) / Integration tests (17, 1.30.12, vertx)	22m 0s
build / integration_tests (17, 1.31.8) / Integration tests (17, 1.31.8, vertx)	24m 17s
build / integration_tests (25, 1.31.8) / Integration tests (25, 1.31.8, vertx)	23m 38s
build / integration_tests (17, 1.33.1) / Integration tests (17, 1.33.1, vertx)	24m 35s
build / integration_tests (17, 1.32.4) / Integration tests (17, 1.32.4, vertx)	23m 25s
build / integration_tests (25, 1.32.4) / Integration tests (25, 1.32.4, vertx)	22m 46s
build / integration_tests (25, 1.30.12) / Integration tests (25, 1.30.12, vertx)	22m 8s
build / integration_tests (21, 1.30.12) / Integration tests (21, 1.30.12, vertx)	23m 20s
build / integration_tests (21, 1.31.8) / Integration tests (21, 1.31.8, vertx)	24m 36s
build / integration_tests (21, 1.32.4) / Integration tests (21, 1.32.4, vertx)	24m 5s
build / integration_tests (21, 1.33.1) / Integration tests (21, 1.33.1, vertx)	23m 28s
build / integration_tests (25, 1.33.1) / Integration tests (25, 1.33.1, vertx)	23m 49s
	5h 59m 28s

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