Prevent "sysctl: unknown oid 'sysctl.proc_translated'" on rancher step (

#84)

@chadgh recently ran into an issue where he saw this error while trying
to install IH rancher:
```
sysctl: unknown oid 'sysctl.proc_translated'
```

This seems to be caused by running on a system that doesn't have rosetta
2 installed.

This PR uses `$(uname -m)` to check for whether it's using arm64
instead, which should be compatible with more setups.

VERSION

@@ -1 +1 @@
-0.1.45
+0.1.46

formula/ih-core.rb

@@ -1,5 +1,5 @@
 class IhCore < Formula
-  VERSION="0.1.45"
+  VERSION="0.1.46"
   desc "Brew formula for installing core tools used at Included Health engineering."
   homepage "https://github.com/ConsultingMD/homebrew-ih-public"
   license "CC BY-NC-ND 4.0"

lib/core/rancher/step.sh

@@ -114,13 +114,12 @@ function ih::setup::core.rancher::install() {
   # Installation and configuration of Rancher Desktop
   for _ in 1 2 3; do
 
-    # Check if we have a Mac M1 and the terminal is running  over x86
-    if [[ $(sysctl -n sysctl.proc_translated) -eq 1 ]] && [ $(arch) = "i386" ]; then
-      arch -arm64 -c brew reinstall ih-rancher
+    # Check if we have a M1 Mac
+    if [ "$(uname -m)" = "arm64" ]; then
+      arch -arm64 brew reinstall ih-rancher
     else
       brew reinstall ih-rancher
     fi
-
     CASKSUCCEEDED=$?
     if [ $CASKSUCCEEDED -eq 0 ]; then
       break