core: Disable proof of indexing

It is taking 25-30% of processing time and is stalling the store

graph: Allow experimenting with writeonly entites for Uniswap

store: Refactor address to param

docker: Install cmake which is required by prost

Requirement was added in this PR:
graphprotocol#3531

news: Add section for indexers on 0.26.0

news: Add section for indexers on 0.26.0

news: Add section for indexers on 0.26.0

news: Release 0.25.2