maint: bump cache machine ebs gp2 vol size

Author: johnalotoski

nix/metal/bitteProfile/default.nix

@@ -216,7 +216,7 @@ in {
           instanceType = "m5.4xlarge";
           privateIP = "172.16.0.52";
           subnet = cluster.vpc.subnets.core-1;
-          volumeSize = 1000;
+          volumeSize = 2000;
 
           modules = [
             (bitte + /profiles/auxiliaries/telegraf.nix)