Bump versions to 0.27.0-rc.5

Fix dataframe queries failing on empty datasets (#11846)

### Related

- Fixes RR-2819

### What

Title. This was due to matching selectors to actual schema, which
involved sorbet stuff, which failed on missing `RowId` columns. Fixed by
short-circuiting the empty dataset case. Also added a test which, like
many more, should have been here in the first place 🤦🏻

Bump versions to 0.27.0-alpha.7

Bump versions to 0.27.0-alpha.6

Bump versions to 0.26.2

Bump versions to 0.26.2-rc.2

Bump versions to 0.26.1

Bump versions to 0.26.1-rc.1

Bump versions to 0.26.0

Bump versions to 0.26.0-rc.7