[NFC] collect changes, mark as v3.3.0

Author: werrolf

CHANGELOG.md

@@ -1,10 +1,11 @@
-## dev-staging/3.3 @ d367a12
+## v3.3.0
+- Update mapbender/mapbender to [v3.3.0](https://github.com/mapbender/mapbender/releases/tag/v3.3.0)
 - Updated Openlayers 6 delivery package to [0.4.3.1](https://github.com/mapbender/openlayers6-es5/releases/tag/0.4.3.1)
 - Update mapbender/digitizer to [1.5.3](https://github.com/mapbender/mapbender-digitizer/releases/tag/1.5.3)
 - Update mapbender/data-manager to [2.0.4](https://github.com/mapbender/data-manager/releases/tag/2.0.4)
 - Update mapbender/data-source to [0.2.5](https://github.com/mapbender/data-source/releases/tag/0.2.5)
 - Update mapbender/coordinates-utility to [1.2.3](https://github.com/mapbender/coordinates-utility/releases/tag/1.2.3)
-- Update symfony/symfony to 4.4.35
+- Update symfony/symfony to 4.4.37
 - Update doctrine/dbal to 2.13.6, with dependencies (PHP8 compatibility)
 - Update phpunit/phpunit to 8.5.21 (PHP8 compatibility)
 - Update twig/twig to 2.14.8 (major update; see [1.x deprecated features](https://twig.symfony.com/doc/1.x/deprecated.html) for potential project incompatibilities)