Release v6.1.5

What's Changed

• [DX] Use mailpit over mailhog by @BitcoinMitchell in #122
• Bump squizlabs/php_codesniffer from 3.9.1 to 3.9.2 by @dependabot in #123
• Bump btcpayserver/btcpayserver-greenfield-php from 2.5.0 to 2.6.0 in /modules/btcpay by @dependabot in #124
• Bump symfony/debug-bundle from 4.4.37 to 5.4.39 in /modules/btcpay by @dependabot in #125
• Update README.md + GitHub configuration by @BitcoinMitchell in #128
• Bump squizlabs/php_codesniffer from 3.9.2 to 3.10.0 by @dependabot in #131
• Bump prestashop/php-dev-tools from 4.3.0 to 5 by @dependabot in #133
• Bump squizlabs/php_codesniffer from 3.10.0 to 3.10.1 by @dependabot in #132
• Bump smarty/smarty from 4.5.2 to 4.5.3 by @dependabot in #134
• Bump symfony/var-dumper from 5.4.39 to 5.4.40 in /modules/btcpay by @dependabot in #135
• Bump symfony/debug-bundle from 5.4.39 to 5.4.40 in /modules/btcpay by @dependabot in #136
• Bump ergebnis/composer-normalize from 2.42.0 to 2.43.0 in /modules/btcpay by @dependabot in #137
• Bump ergebnis/composer-normalize from 2.42.0 to 2.43.0 by @dependabot in #138
• [Configuration] Ensure ConfigureController works on PS 8.0 by @BitcoinMitchell in #140

Full Changelog: v6.1.4...v6.1.5