g0odman

Since this [commit](https://github.com/sst/ion/commit/5333a88635448bd933e3507733befad7236bf83e ) the install script doesn't cache the version correctly since the output of the sst version command has changed.

fix(install script): update get version command to new sst output format

1

Since the commit https://github.com/sst/ion/commit/5333a88635448bd933e3507733befad7236bf83e the install script is broken since the sst version command output changed. This fixes this by formatting the output using bash. Closes #880