doc: Update changelog

dev: Add .envrc.* and shell.nix

Merge branch 'feature/changelog'

ci: No docs

ci: Do not run goreleaser in parallel

ns: Use errSkip

Release version 3.0.0

Merge pull request TheThingsNetwork#229 from rvolosatovs/fix/228-prer…

…elease-docker

Avoid pushing pre-release builds to Docker hub

Merge pull request TheThingsNetwork#221 from rvolosatovs/fix/makefile

Fix `make deps` ordering

Merge pull request TheThingsNetwork#717 from TheThingsNetwork/feature…

…/au-102-dr

Add 1.0.2RevB Data Rates to AU915