schemadiff: reject non-deterministic function in new column's default value #953

Job	Run time
Set push variable	1s
Build and push vttestserver (mysql80)	2m 1s
Build and push lite (latest)	2m 21s
Build and push lite (percona80)	2m 17s
Build and push (bullseye, vtadmin)	1m 14s
Build and push (bullseye, vtorc)	31s
Build and push (bullseye, vtgate)	38s
Build and push (bullseye, vttablet)	37s
Build and push (bullseye, mysqlctld)	41s
Build and push (bullseye, mysqlctl)	46s
Build and push (bullseye, vtctl)	42s
Build and push (bullseye, vtctlclient)	38s
Build and push (bullseye, vtctld)	1m 10s
Build and push (bullseye, vtctldclient)	42s
Build and push (bullseye, logrotate)	23s
Build and push (bullseye, logtail)	28s
Build and push (bullseye, vtbackup)	30s
Build and push (bullseye, vtexplain)	36s
Build and push (bookworm, vtadmin)	1m 16s
Build and push (bookworm, vtorc)	41s
Build and push (bookworm, vtgate)	26s
Build and push (bookworm, vttablet)	38s
Build and push (bookworm, mysqlctld)	45s
Build and push (bookworm, mysqlctl)	42s
Build and push (bookworm, vtctl)	33s
Build and push (bookworm, vtctlclient)	38s
Build and push (bookworm, vtctld)	58s
Build and push (bookworm, vtctldclient)	57s
Build and push (bookworm, logrotate)	24s
Build and push (bookworm, logtail)	33s
Build and push (bookworm, vtbackup)	37s
Build and push (bookworm, vtexplain)	32s
	25m 56s

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