feat: prepare 3.0 release (#12509) #81

Job	Run time
check / lint	6m 15s
check / test	9m 29s
check / integration	5m 1s
check / check	4m 19s
version	1m 43s
fluentd (linux/amd64)	1m 27s
fluent-bit (linux/amd64)	1m 41s
dist	23m 1s
logcli (linux/amd64)	1m 59s
logcli (linux/arm64)	17m 20s
logcli (linux/arm)	20m 1s
logstash (linux/amd64)	3m 27s
loki (linux/amd64)	2m 22s
loki-canary (linux/amd64)	1m 39s
loki (linux/arm64)	17m 36s
loki-canary (linux/arm64)	10m 55s
loki (linux/arm)	20m 41s
loki-canary (linux/arm)	12m 58s
loki-canary-boringcrypto (linux/amd64)	1m 38s
loki-canary-boringcrypto (linux/arm64)	11m 23s
loki-canary-boringcrypto (linux/arm)	13m 13s
promtail (linux/amd64)	2m 34s
promtail (linux/arm64)	24m 4s
querytee (linux/amd64)	2m 0s
promtail (linux/arm)	29m 9s
create-release-pr	1m 59s
	4h 7m 54s

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