Bumping spiner version in cmake to prepare new release.

[dholladay00]

PR Summary

This is purely a release update, bumping the cmake version number, after merged, tags and releases can be created.

PR Checklist

• [x] Code is formatted. (You can use the format_spiner make target.)
• [x] Adds a test for any bugs fixed. Adds tests for new features.
• [x] If preparing for a new release, update the version in cmake.