Encode nodeid in hex for invalid vrf nonce error #1093

Job	Run time
lint	25s
quicktests	57s
coverage	1m 0s
unittests (ubuntu-22.04)	1m 24s
unittests (self-hosted, linux, arm64)	49s
unittests (macos-13)	2m 27s
unittests (self-hosted, macos, arm64)	49s
unittests (windows-2022)	2m 39s
Build postcli (ubuntu-22.04)	42s
Build postcli (self-hosted, linux, arm64)	18s
Build postcli (macos-13)	1m 59s
Build postcli (self-hosted, macos, arm64)	24s
Build postcli (windows-2022)	1m 45s
Publish release	0s
	15m 38s

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