Response redirect/reload functions

Two new non-standard functions are added for convenience within WebEngine and other frameworks. Response::redirect and Response::reload.

What's Changed

• Abstract exception removal by @g105b in #80
• 45 phpstan level 6 by @g105b in #114
• build: hard dependencies by @g105b in #154
• Bump willdurand/negotiation from 3.0.0 to 3.1.0 by @dependabot in #110
• Bump phpstan/phpstan from 1.8.0 to 1.8.1 by @dependabot in #155
• feature: Uri::getQueryValue by @g105b in #157
• 159 response redirect by @g105b in #160

New Contributors

• @dependabot made their first contribution in #110

Full Changelog: v1.1.4...v1.1.5