Bump jwilder/nginx-proxy from 1.6.2 to 1.6.3 in /nginx-proxy #104

Job	Run time
Build and push PHP 7.4	4m 15s
Build and push nginx	15s
Build and push PHP 8.0	4m 28s
Build and push nginx-proxy	32s
Build and push PHP 8.1	4m 59s
Build and push postfix	1m 37s
Build and push PHP 8.2	5m 1s
Build and push redis	18s
Build and push PHP 8.3	5m 19s
Build and push cron	20s
Build and push PHP stable	4m 41s
Build and push mailhog	14s
Build and push mariadb	18s
Build and push newrelic-daemon	26s
	32m 43s

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