Encode nodeid in hex for invalid vrf nonce error #1092

Job	Run time
quicktests	40s
lint	21s
coverage	1m 17s
unittests (ubuntu-22.04)	1m 35s
unittests (self-hosted, linux, arm64)	1m 1s
unittests (macos-13)	1m 53s
unittests (self-hosted, macos, arm64)	55s
unittests (windows-2022)	4m 54s
Build postcli (ubuntu-22.04)	34s
Build postcli (self-hosted, linux, arm64)	18s
Build postcli (macos-13)	1m 24s
Build postcli (self-hosted, macos, arm64)	25s
Build postcli (windows-2022)	1m 54s
Publish release	0s
	17m 11s

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