v0.14.0

Major changes

• Only use a single retrieval query for similar requests (#191).
  When the server is running after an initial query, and the same request is repeated (similar filter, page_limit, page_offset) there will only be a single AiiDA QueryBuilder invocation, where there used to be up to 4 separate invocations.

Development updates

• Update dependencies (#187, #190, #192, #195).
• Fine-tune CI (#186, #191).