Update web & postorius images with similar changes as core

web/docker-entrypoint.sh

@@ -16,23 +16,14 @@ function wait_for_postgres () {
 
 function wait_for_mysql () {
 	# Check if MySQL is up and accepting connections.
-	HOSTNAME=$(python3 <<EOF
-try:
-    from urllib.parse import urlparse
-except ImportError:
-    from urlparse import urlparse
-o = urlparse('$DATABASE_URL')
-print(o.hostname)
-EOF
-)
-	until mysqladmin ping --host "$HOSTNAME" --silent; do
+	readarray -d' ' -t ENDPOINT <<< $(python3 -c "from urllib.parse import urlparse; o = urlparse('$DATABASE_URL'); print('%s %s' % (o.hostname, o.port if o.port else '3306'));")
+	until mysqladmin ping --host ${ENDPOINT[0]} --port ${ENDPOINT[1]} --silent; do
 		>&2 echo "MySQL is unavailable - sleeping"
 		sleep 1
 	done
 	>&2 echo "MySQL is up - continuing"
 }
 
-
 function check_or_create () {
 	# Check if the path exists, if not, create the directory.
 	if [[ ! -e dir ]]; then