feat: Sign MacOS binaries (#1060)

This fixes virus warnings when launching Coder on darwin.

scripts/sign_macos.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+cd "$(git rev-parse --show-toplevel)"
+
+codesign -s $AC_APPLICATION_IDENTITY -f -v --timestamp --options runtime $1 
+
+config="$(mktemp -d)/gon.json" 
+jq -r --null-input --arg path "$(pwd)/$1" '{
+    "notarize": [
+        {
+            "path": $path,
+            "bundle_id": "com.coder.cli"
+        }
+    ]
+}' > $config
+gon $config