fix(sqlite): don't use mkdirp if the file already exists

[WikiRik]

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Description Of Change

On Windows, using fs.mkdir() on the root directory even with recursion will result in an error

https://nodejs.org/dist/latest-v16.x/docs/api/fs.html#fsmkdirpath-options-callback

Fixes #14555

[evanrittenhouse]

LGTM! Nice find