update hatchet expected version

spec/hatchet/python_spec.rb

@@ -4,7 +4,7 @@ describe "Python!!!!!!!!!!!" do
   it "🐍" do
     Hatchet::Runner.new('python-getting-started', stack: DEFAULT_STACK).deploy do |app|
       expect(app.output).to           match(/Installing pip/)
-      expect(app.run('python -V')).to match(/3.6.6/)
+      expect(app.run('python -V')).to match(/3.6.7/)
     end
   end
 end

test/fixtures/pipenv-version/Pipfile

@@ -6,4 +6,4 @@ verify_ssl = true
 requests = "*"
 
 [requires]
-python_version = "3.6"
+python_version = "3.6"

test/fixtures/pipenv-version2/Pipfile

@@ -0,0 +1,11 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+
+[dev-packages]
+
+[requires]
+python_version = "2.7"

test/fixtures/pipenv-version2/Pipfile.lock

@@ -0,0 +1,20 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "ae4bdd7d4157baab65ae9d0e8389a6011e6b640995372c45ec81fa5d1ddfae9f"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "2.7"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {},
+    "develop": {}
+}