msvc-dev-cmv v1.8.1

Also updating and adding whatever the new version of npm wants to be
updated and added in its package files. This should not affect the
behavior of the action.

node_modules/.package-lock.json

@@ -0,0 +1,13 @@
+{
+  "name": "msvc-dev-cmd",
+  "version": "1.8.1",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "node_modules/@actions/core": {
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.6.tgz",
+      "integrity": "sha512-ZQYitnqiyBc3D+k7LsgSBmMDVkOVidaagDG7j3fOym77jNunWRuYx7VSHa9GNfFZh+zh61xsCjRj4JxMZlDqTA=="
+    }
+  }
+}