Bump sqlite3 from 1.6.5 to 1.6.6

Bumps [sqlite3](https://github.com/sparklemotion/sqlite3-ruby) from 1.6.5 to 1.6.6.
- [Release notes](https://github.com/sparklemotion/sqlite3-ruby/releases)
- [Changelog](https://github.com/sparklemotion/sqlite3-ruby/blob/master/CHANGELOG.md)
- [Commits](sparklemotion/sqlite3-ruby@v1.6.5...v1.6.6)

---
updated-dependencies:
- dependency-name: sqlite3
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -259,9 +259,9 @@ GEM
  actionpack (>= 5.2)
  activesupport (>= 5.2)
  sprockets (>= 3.0.0)
- sqlite3 (1.6.5)
+ sqlite3 (1.6.6)
  mini_portile2 (~> 2.8.0)
- sqlite3 (1.6.5-x86_64-linux)
+ sqlite3 (1.6.6-x86_64-linux)
  thor (1.2.2)
  timeout (0.4.0)
  tzinfo (2.0.6)