Load Docker buildx images for testing

Signed-off-by: Shrikant Sharat Kandula <shrikant@appsmith.com>

app/server/scripts/start-dev-server.sh

@@ -10,9 +10,10 @@ if [[ -f .env ]]; then
   source .env
 fi
 
+source envs/dev.env
 source ../util/is_wsl.sh
 if [ $IS_WSL ]; then
   _JAVA_OPTIONS="-Djava.net.preferIPv4Stack=true $_JAVA_OPTIONS"
 fi
 
-(cd dist && exec java -jar server-*.jar)
+(cd dist && exec java -Xmx500m -jar server-*.jar)