macOS cb_gosecrets_runner babysitter crash on startup after full reinstall

Anecdotally I've seen this issue (or one with the same symptom) also occur a long time ago (v5.x?)

cb_gosecrets_runner is crashing babysitter on startup due to a directory not existing after a full uninstall/reinstall.

Approximate repro steps:

1. Install Couchbase Server MacOS package
2. Some amount of basic usage (e.g. create bucket? add a doc?)
3. Uninstall following the documented steps
   1. Remove .app
   2. Remove Couchbase/membase/couchbase-py directories
      1. rm -rf ~/Library/Application\ Support/Couchbase && rm -rf ~/Library/Application\ Support/membase && rm -rf ~/Library/Python/couchbase-py
4. Reinstall Couchbase Server MacOS package
5. Crash on startup (see error screenshot)
6. Crash dump and babysitter.log attached

The workaround/fix is to manually create the var/lib/couchbase/config directory:

• mkdir -p /Users/benbrooks/Library/Application Support/Couchbase/var/lib/couchbase/config