Try to get static build working

RoyalIcing · RoyalIcing · commit a8a1fac4f307 · 2022-03-23T11:38:54.000+11:00
diff --git a/phoenix_static_buildpack.config b/phoenix_static_buildpack.config
@@ -1,3 +1,4 @@
-node_version=12.19.0
-npm_version=6.14.8
+phoenix_relative_path=.
+node_version=16.14.2
+npm_version=8.5.5
 compile="compile"
