update: holesail image 2.2.0 & refactor

mc

@@ -6,6 +6,8 @@ RED="\033[0;91m"
 GREEN="\033[0;92m"
 RESET='\033[0m'
 
+HOLESAIL_DOCKER_IMAGE='anaxios/holesail:2.2.0'
+
 readonly base_url="https://api.my-mc.link/"
 readonly headers=( -H "Accept: application/json" -H "Content-Type: application/json" -H "x-my-mc-auth: ${MY_MC_API_KEY}" )
 
@@ -116,7 +118,7 @@ function connect() {
                -e HOST=0.0.0.0 \
                -e PUBLIC=false \
                -e MY_MC_API_KEY=$MY_MC_API_KEY \
-               -p $port:25565 'anaxios/holesail:2.1.0'
+               -p $port:25565 "$HOLESAIL_DOCKER_IMAGE"
     echo ""
 }