Update sqlite3 requirement from 1.6.8 to 2.4.0

Updates the requirements on [sqlite3](https://github.com/sparklemotion/sqlite3-ruby) to permit the latest version.
- [Release notes](https://github.com/sparklemotion/sqlite3-ruby/releases)
- [Changelog](https://github.com/sparklemotion/sqlite3-ruby/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/sqlite3-ruby@v1.6.8...v2.4.0)

---
updated-dependencies:
- dependency-name: sqlite3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -7,7 +7,7 @@ ruby "~> 3.1.1"
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem "rails", "~> 7.0.3"
 # Use sqlite3 as the database for Active Record
-gem "sqlite3", "1.6.8"
+gem "sqlite3", "2.4.0"
 # Use Puma as the app server
 gem "puma", ">= 5.6.4"
 # Use SCSS for stylesheets