Update to npm 6.14.6

RoyalIcing · RoyalIcing · commit 1840de9123d0 · 2020-07-29T19:08:01.000+10:00
diff --git a/phoenix_static_buildpack.config b/phoenix_static_buildpack.config
@@ -1,3 +1,3 @@
 phoenix_relative_path=apps/components_guide_web
 node_version=12.18.3
-npm_version=6.4.1
+npm_version=6.14.6
