Bump sqlite3 from 1.4.4 to 1.6.0

Bumps [sqlite3](https://github.com/sparklemotion/sqlite3-ruby) from 1.4.4 to 1.6.0.
- [Release notes](https://github.com/sparklemotion/sqlite3-ruby/releases)
- [Changelog](https://github.com/sparklemotion/sqlite3-ruby/blob/master/CHANGELOG.md)
- [Commits](sparklemotion/sqlite3-ruby@v1.4.4...v1.6.0)

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

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

Gemfile.lock

@@ -319,7 +319,8 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.4.4)
+    sqlite3 (1.6.0)
+      mini_portile2 (~> 2.8.0)
     terrapin (0.6.0)
       climate_control (>= 0.0.3, < 1.0)
     terser (1.1.12)