personal/q3k/minecraft: enforce whitelist on main server

Change-Id: I7edf0babd476b7aeb92551ea62ccffa2c79a13a1
diff --git a/personal/q3k/minecraft/prod.jsonnet b/personal/q3k/minecraft/prod.jsonnet
index a662cce..e03bb52 100644
--- a/personal/q3k/minecraft/prod.jsonnet
+++ b/personal/q3k/minecraft/prod.jsonnet
@@ -182,6 +182,7 @@
         survival: minecraft.server("q3k-survival", "spigot-1.15.2") {
             properties+: {
                 motd: "wypierdol z polski kropka pe el",
+                "enforce-whitelist": true,
             },
         },
     },