v0.10.1

Patch Changes

• 235d885: withGitSandbox throws SandboxNotRemovedError, naming the directory and the pid, when the sandbox directory is still there after its removal, so a surviving sandbox fails the test that made it instead of surfacing in another process's teardown. Removal is an optional third argument, { remove }, a seam for that test; the default is unchanged. Closes a11ign/a11ign#5520.