deploy: auto-deploy webconfig files

All .html and .ico files are now pushed to vuln.go.dev on submit of a
new CL to x/vulndb.

Change-Id: I0b0fc0c74cdbd2fc4c9e0b51a8036f37c55f2b4e
Reviewed-on: https://go-review.googlesource.com/c/vulndb/+/443697
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Run-TryBot: Tatiana Bradley <tatiana@golang.org>

deploy/gcp-deploy.sh

@@ -6,3 +6,4 @@
 set -e
 
 gsutil -m cp -r /workspace/db/* gs://go-vulndb
+gsutil cp webconfig/*.html webconfig/*.ico gs://go-vulndb