v1.0.4 hotfixes (#287)

* update cqlsh.url to point to bundled+prepatched cqlsh-astra

* update upgrade notifier to hopefully cause less security false alarms

What's Changed

This is primarily a bug-fix release, fixing a handful of minor bugs and documentation issues here and there.

Major changes:

1. astra db list-regions-* is now astra db regions *
   • e.g. astra db regions vector
2. astra db get-endpoint-* is now astra db endpoints *
   • e.g. astra db endpoints playground
   • Two new subcommands:
     • astra db endpoints data-api - gets the data api endpoint (api_endpoint + /v1/api/json)
     • astra db endpoints list - list all endpoints as a table

Resolved issues:

• #282
• #281
• #279
• #276
• #273
• #272
• #271
• #270
• #262
• #260
• #259

Full Changelog: v1.0.2...v1.0.3

minor fix for installation script in environments without color

fix completions, make completions transfer when switching defaults, m…