changelog: Add details for cache speedup and performance improvements #14138

Job	Run time
set-product-version	5s
product-metadata	1m 8s
generate-metadata-file	33s
verify-product-metadata	4s
Go 1.23.1 darwin amd64 build	6m 42s
Go 1.23.1 darwin arm64 build	6m 3s
Go 1.23.1 freebsd 386 build	5m 11s
Go 1.23.1 linux arm build	5m 51s
Go 1.23.1 freebsd amd64 build	5m 51s
Go 1.23.1 linux arm64 build	5m 43s
Go 1.23.1 freebsd arm build	5m 9s
Go 1.23.1 linux 386 build	6m 1s
Go 1.23.1 windows 386 build	5m 10s
Go 1.23.1 linux amd64 build	6m 9s
Go 1.23.1 windows amd64 build	5m 34s
Go 1.23.1 netbsd 386 build	4m 45s
Go 1.23.1 netbsd amd64 build	5m 27s
Go 1.23.1 netbsd arm build	4m 53s
Go 1.23.1 openbsd 386 build	5m 5s
Go 1.23.1 openbsd amd64 build	5m 30s
Go 1.23.1 openbsd arm build	5m 18s
Go 1.23.1 solaris amd64 build	5m 17s
Docker arm build	1m 5s
Docker arm64 build	51s
Docker 386 build	55s
Docker amd64 build	51s
bats / CLI tests	14m 15s
Enos / setup	1m 24s
Enos / Integration (e2e_aws builder:crt)	16m 29s
Enos / Integration (e2e_database)	5m 55s
Enos / Integration (e2e_docker_base builder:crt)	20m 7s
Enos / Integration (e2e_docker_base_plus builder:crt)	9m 19s
Enos / Integration (e2e_docker_base_with_vault builder:crt)	4m 54s
Enos / Integration (e2e_docker_base_with_worker builder:crt)	3m 53s
Enos / Integration (e2e_docker_worker_registration_controller_led builder:crt)	3m 52s
Enos / Integration (e2e_docker_worker_registration_worker_led builder:crt)	3m 54s
	3h 9m 13s

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