fix: return 500 status code to Stacks node when event ingestion fails #1529

Job	Run time
test (cli)	4m 57s
distributions (ubuntu-latest, linux, x86_64-unknown-linux-gnu, x64, glibc)	1m 38s
test (sdk)	3m 11s
distributions (windows-latest, windows, x86_64-pc-windows-msvc, x64)	6m 6s
distributions (macos-latest, darwin, x86_64-apple-darwin, x64)	1m 41s
distributions (macos-latest, darwin, aarch64-apple-darwin, arm64)	1m 41s
semantic-release	0s
build-publish	0s
deploy-dev	0s
auto-approve-dev	0s
deploy-staging	0s
auto-approve-stg	0s
deploy-prod	0s
	19m 14s

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