fix(node-runtime-worker-thread): externalize system-ca and deps COMPASS-4105 (#1221)

In order to be usable in Compass, system-ca and its addon dependencies
need to be externalized in the webpack configuration.

Theoretically, it might be enough to only externalize the addons;
however, since system-ca prefers to use worker threads for loading
certificates asynchronously on macOS and Windows, and we need to
externalize *something*, it makes sense to do it on the system-ca
level.

Author: addaleax

packages/node-runtime-worker-thread/.depcheckrc

@@ -1,2 +1,2 @@
-ignores: ['webpack-cli']
-skip-missing: true
+ignores: ['webpack-cli', 'system-ca']
+skip-missing: true

packages/node-runtime-worker-thread/package-lock.json

@@ -42,6 +42,7 @@
     "webpack-cli": "^4.3.1"
   },
   "dependencies": {
-    "interruptor": "^1.0.1"
+    "interruptor": "^1.0.1",
+    "system-ca": "^1.0.2"
   }
 }

packages/node-runtime-worker-thread/package.json

@@ -44,6 +44,7 @@ const config = {
     snappy: 'commonjs2 snappy',
     interruptor: 'commonjs2 interruptor',
     'os-dns-native': 'commonjs2 os-dns-native',
+    'system-ca': 'commonjs2 system-ca'
   }
 };