build: release v0.10.0

build: release v0.9.0

build: delete `git-branchless-testing` crate

The `git-branchless-lib` crate has a dev-dependency on `git-branchless-testing`, and `git-branchless-testing` has a dependency on `git-branchless-lib`, inducing a circular dependency that means they can't be published to crates.io. This commit collapses them into the same crate again to resolve this circular dependency.

docs: release v0.7.1

docs: release v0.7.0

fix(docs): separate 0.7.0 changes from 0.6.0

I accidentally kept updating v0.6.0 instead of starting a new section for v0.7.0. This commit extracts the v0.7.0 changes from the v0.6.0 notes.

docs: release version 0.6.0

Revert "Add support for interactively checking out a branch"

This reverts commit 7ce51cc.

Temporarily reverting this commit in order to release a fix for #581.

docs: release version v0.5.0

docs: release `git-branchless` v0.4.0