chore(deps): bump golang.org/x/sync from 0.3.0 to 0.4.0 #3820

Job	Run time
compile-preflight	4m 2s
ensure-schemas-are-generated	4m 42s
compile-collect	3m 39s
compile-supportbundle	3m 17s
fail_if_pull_request_is_draft	0s
goreleaser-test (amd64, darwin)	2m 54s
run-examples	1m 27s
test	4m 56s
goreleaser-test (amd64, linux)	2m 49s
test-integration	4m 32s
goreleaser-test (amd64, windows)	2m 58s
goreleaser-test (arm64, darwin)	9s
goreleaser-test (arm64, linux)	2m 51s
goreleaser-test (arm64, windows)	10s
goreleaser-test (arm, linux)	3m 19s
goreleaser-test (riscv64, linux)	2m 54s
validate-supportbundle-e2e-go-test	5m 4s
validate-supportbundle	1m 26s
validate-supportbundle-e2e	1m 10s
validate-preflight-e2e	1m 6s
validate-preflight	34s
goreleaser	0s
	53m 59s

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