chore: Update dependency aip-site-generator to v0.4.0 (#16)

renovate[bot] · renovate-bot · web-flow · commit 294e1de7ff9b · 2020-10-06T09:28:23.000-07:00
Co-authored-by: Renovate Bot &lt;bot@renovateapp.com&gt;
diff --git a/requirements.txt b/requirements.txt
@@ -1 +1 @@
-aip-site-generator==0.3.0
+aip-site-generator==0.4.0
