Use the latest monolog v3 and macbre/monolog-utils, require PHP 8.1+

What's Changed

• Bump phpstan/phpstan from 1.8.11 to 1.9.0 by @dependabot in #172
• Bump friendsofphp/php-cs-fixer from 3.4.0 to 3.13.0 by @dependabot in #171
• CI - check PHP 8.2 too by @macbre in #173
• Bump phpstan/phpstan from 1.9.0 to 1.9.1 by @dependabot in #175
• Bump phpstan/phpstan from 1.9.1 to 1.9.2 by @dependabot in #176
• Bump phpstan/phpstan from 1.9.2 to 1.9.3 by @dependabot in #178
• Bump phpunit/phpunit from 9.5.26 to 9.5.27 by @dependabot in #177
• Bump friendsofphp/php-cs-fixer from 3.13.0 to 3.13.1 by @dependabot in #179
• Bump phpstan/phpstan from 1.9.3 to 1.9.4 by @dependabot in #180
• Bump friendsofphp/php-cs-fixer from 3.13.1 to 3.13.2 by @dependabot in #181
• Bump phpstan/phpstan from 1.9.4 to 1.9.6 by @dependabot in #182
• Bump phpstan/phpstan from 1.9.6 to 1.9.7 by @dependabot in #183
• Bump phpstan/phpstan from 1.9.7 to 1.9.8 by @dependabot in #184
• Bump phpstan/phpstan from 1.9.8 to 1.9.10 by @dependabot in #185
• Bump phpunit/phpunit from 9.5.27 to 9.5.28 by @dependabot in #187
• Bump phpstan/phpstan from 1.9.10 to 1.9.11 by @dependabot in #186
• Bump predis/predis from 2.0.3 to 2.1.0 by @dependabot in #188
• Bump phpstan/phpstan from 1.9.11 to 1.9.12 by @dependabot in #189
• Bump predis/predis from 2.1.0 to 2.1.1 by @dependabot in #190
• Bump friendsofphp/php-cs-fixer from 3.13.2 to 3.14.3 by @dependabot in #192
• Bump monolog/monolog from 2.8.0 to 2.9.1 by @dependabot in #194
• Bump phpunit/phpunit from 9.5.28 to 9.6.3 by @dependabot in #195
• Bump phpstan/phpstan from 1.9.12 to 1.9.14 by @dependabot in #191
• Bump phpstan/phpstan from 1.9.14 to 1.9.16 by @dependabot in #196
• Bump friendsofphp/php-cs-fixer from 3.14.3 to 3.14.4 by @dependabot in #198
• Bump phpstan/phpstan from 1.9.16 to 1.9.17 by @dependabot in #197
• Bump phpstan/phpstan from 1.9.17 to 1.10.0 by @dependabot in #200
• Bump phpstan/phpstan from 1.10.0 to 1.10.1 by @dependabot in #201
• Bump predis/predis from 2.1.1 to 2.1.2 by @dependabot in #205
• Bump phpunit/phpunit from 9.6.3 to 9.6.4 by @dependabot in #204
• Bump tedivm/jshrink from 1.4.0 to 1.6.0 by @dependabot in #207
• Bump phpstan/phpstan from 1.10.1 to 1.10.4 by @dependabot in #206
• Bump phpstan/phpstan from 1.10.4 to 1.10.5 by @dependabot in #208
• Bump phpunit/phpunit from 9.6.4 to 9.6.5 by @dependabot in #209
• Bump friendsofphp/php-cs-fixer from 3.14.4 to 3.15.0 by @dependabot in #211
• Bump tedivm/jshrink from 1.6.0 to 1.6.5 by @dependabot in #212
• Bump phpstan/phpstan from 1.10.5 to 1.10.6 by @dependabot in #210
• Bump friendsofphp/php-cs-fixer from 3.15.0 to 3.15.1 by @dependabot in #213
• Bump phpstan/phpstan from 1.10.6 to 1.10.7 by @dependabot in #214
• Bump phpstan/phpstan from 1.10.7 to 1.10.8 by @dependabot in #215
• Bump friendsofphp/php-cs-fixer from 3.15.1 to 3.16.0 by @dependabot in #218
• Bump phpunit/phpunit from 9.6.5 to 9.6.6 by @dependabot in #216
• Bump phpstan/phpstan from 1.10.8 to 1.10.10 by @dependabot in #219
• httpbin: use a local instance for tests and in CI by @macbre in #224
• Use the latest monolog v3 and macbre/monolog-utils (hence require PHP 8.1+) by @macbre in #225
• Bump phpunit/phpunit from 9.6.7 to 10.1.1 by @dependabot in #226
• CI: install xdebug and use it for coverage instead of PCOV by @macbre in #227

Full Changelog: v0.8.1...v0.9.0