update railpack

railpack.json

@@ -1,7 +1,12 @@
 {
-    "$schema": "https://schema.railpack.com",
+    "$schema": "https://railpack.com",
     "steps": {
         "install": {
+            "inputs": [
+                {
+                    "context": "."
+                }
+            ],
             "commands": [
                 "npm install"
             ]
@@ -10,6 +15,9 @@
             "inputs": [
                 {
                     "step": "install"
+                },
+                {
+                    "context": "."
                 }
             ],
             "commands": [