Bump mysql2 from 0.4.10 to 0.5.0

[dependabot-preview[bot]]

Bumps mysql2 from 0.4.10 to 0.5.0.

Release notes

*Sourced from mysql2's [releases](https://github.com/brianmario/mysql2/releases).* > ## 0.5.0 > Breaking Changes > === > * Ruby 2.0 or higher required. Ruby 1.8.7 and Ruby 1.9.3 are not supported. > * MySQL 5.5 or higher required. MySQL 5.0 and 5.1 are not supported. > > New Features > === > * Expose `mysql_set_server_option` to turn multiple statements on and off ([#943](https://github.com/brianmario/mysql2/issues/943)) > * Accept query options on Statement#execute ([#912](https://github.com/brianmario/mysql2/issues/912)) > * Support connect attributes and the `program_name` attribute ([#760](https://github.com/brianmario/mysql2/issues/760)) > * Make `server_status` variable available ([#755](https://github.com/brianmario/mysql2/issues/755)) > > Bug Fixes > === > * Fix wrong value of type YEAR on big endian environment ([#921](https://github.com/brianmario/mysql2/issues/921)) > * MySQL 8.0.3 Release Candidate removes MYSQL_SECURE_AUTH ([#891](https://github.com/brianmario/mysql2/issues/891)) > * Suppress Fixnum and Bignum warnings on Ruby 2.4 ([#907](https://github.com/brianmario/mysql2/issues/907)) > > Changes > === > * Resolve warnings for my_bool vs. bool types (#916, [#919](https://github.com/brianmario/mysql2/issues/919)) > * Call BigDecimal(num) instead of BigDecimal.new(num) (#925, [#928](https://github.com/brianmario/mysql2/issues/928)) > * GitHub is HTTPS by default ([#922](https://github.com/brianmario/mysql2/issues/922)) > * Misc Cleanups ([#918](https://github.com/brianmario/mysql2/issues/918)) > * More specific exception classes (#260, #404, #870, 911) > * Update RuboCop to 0.50.x ([#752](https://github.com/brianmario/mysql2/issues/752)) > * Prefix more C functions with `rb_mysql_` ([#910](https://github.com/brianmario/mysql2/issues/910)) > * Fix compat with RubyInstaller-2.4 on Windows ([#875](https://github.com/brianmario/mysql2/issues/875)) >

Changelog

*Sourced from mysql2's [changelog](https://github.com/brianmario/mysql2/blob/master/CHANGELOG.md).* > Changes are maintained under [Releases](https://github.com/brianmario/mysql2/releases)

Commits

- [`bf227ac`](https://github.com/brianmario/mysql2/commit/bf227ace695b5e1b836d5b788a87dd98f7acb546) Bump version to 0.5.0 - [`420dbe6`](https://github.com/brianmario/mysql2/commit/420dbe6fbbcd3d39e2d0ee66a9fc6aa7ccf37c75) README note that MariaDB 10.3 and Ruby 2.6 are supported - [`eca4d25`](https://github.com/brianmario/mysql2/commit/eca4d2552f605e14d8d935d67c36d7f83b2bf89b) Initialize params_enc variable to resolve a warning - [`7879790`](https://github.com/brianmario/mysql2/commit/7879790c3bc6f2c923ca23c23e3f27002e93f35f) Travis CI add MariaDB 10.3 - [`1ea606c`](https://github.com/brianmario/mysql2/commit/1ea606c274c789c47997630cf3b72e1b4e820d38) Travis CI add Ruby 2.6 - [`a0ca592`](https://github.com/brianmario/mysql2/commit/a0ca592c03c021262a62a1b068e20c5c37e7e804) Use a local scope to avoid leaking the temporary variable for bind_count - [`620a055`](https://github.com/brianmario/mysql2/commit/620a0551e46523a424a68695f4e8f7b91e39fb31) Revert "Layout/IndentHeredoc" - [`7f9569e`](https://github.com/brianmario/mysql2/commit/7f9569edeeaabcf51d29dd9489c9b294395e7f45) Bump RuboCop limits for spec file length - [`b3fe727`](https://github.com/brianmario/mysql2/commit/b3fe727b56ba5c8cb5678200f2e99a7119bc41cc) Style nit fix for [#943](https://github.com/brianmario/mysql2/issues/943) - [`86c352d`](https://github.com/brianmario/mysql2/commit/86c352ddea47908bf5bbec00f216d257697fc484) Merge pull request [#919](https://github.com/brianmario/mysql2/issues/919) from sodabrew/typedef_my_bool - Additional commits viewable in [compare view](https://github.com/brianmario/mysql2/compare/0.4.10...0.5.0)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

If you'd like to skip this version, you can just close this PR. If you have any feedback just mention @dependabot in the comments below.

[dependabot-preview[bot]]

Superseded by #143.