fixing for amd64

Author: sam-burrell

bin/install

@@ -10,7 +10,7 @@ fail() {
 get_arch() {
   local arch="$(uname -m)"
   if [ "$arch" = "x86_64" ]; then
-    echo "x86_64"
+    echo "amd64"
   elif [ "$arch" = "arm64" ]; then
     echo "arm64"
   elif [ "$arch" = "aarch64" ]; then