Add timezone awareness for Hugo builds
Originally added in #180 (closed), and removed just now in !288 (merged), but needed as the base image we're using for Hugo bases its times on UTC, which is slightly off now we're in BST!
Closes #422 (closed).
Originally added in #180 (closed), and removed just now in !288 (merged), but needed as the base image we're using for Hugo bases its times on UTC, which is slightly off now we're in BST!
Closes #422 (closed).