[chore] Prepare release v1.50.0/v0.144.0 (#14451) #36742

Job	Run time
setup-environment	20s
test-coverage	11m 16s
govulncheck	3m 14s
lint	14m 28s
checks	2m 21s
unittest-matrix (ubuntu-latest, oldstable)	6m 49s
unittest-matrix (ubuntu-latest, stable)	7m 9s
cross-build-collector (aix, ppc64)	56s
cross-build-collector (linux, arm64)	54s
cross-build-collector (linux, 386)	58s
cross-build-collector (linux, amd64)	55s
cross-build-collector (darwin, arm64)	56s
cross-build-collector (windows, arm64)	51s
cross-build-collector (windows, amd64)	58s
cross-build-collector (linux, s390x)	56s
cross-build-collector (linux, ppc64le)	55s
cross-build-collector (linux, arm, 7)	53s
cross-build-collector (windows, 386)	58s
cross-build-collector (linux, riscv64)	1m 0s
cross-build-collector (darwin, amd64)	56s
unittest	3s
	57m 46s

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