fix(openapi): Remove trailing characters in descriptions #1363

Job	Run time
Generate crates matrix	9s
Check crates matrix	2s
Build zebrad crate	34m 34s
Build zebra-utils crate	17m 41s
Build zebra-test crate	1m 28s
Build zebra-state crate	22m 57s
Build zebra-script crate	4m 6s
Build zebra-scan crate	21m 29s
Build zebra-rpc crate	24m 29s
Build zebra-node-services crate	3m 16s
Build zebra-network crate	6m 58s
Build zebra-grpc crate	15m 2s
Build zebra-consensus crate	18m 15s
Build zebra-chain crate	5m 11s
Build tower-fallback crate	58s
Build tower-batch-control crate	1m 23s
Open or update issues for building crates individually failures	0s
	2h 57m 58s

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