Merge pull request #29 from GetResponse/pburant/grsd-47340

chore: GRSD-47340 upgrade phpunit to safe version

Merge branch 'develop' into 'master'

Develop -> Master

See merge request integrations/share-code-plugin!64

GRINTEGRAT-4628 - added doctype for php8.1 compatibility + fix unit t…

…ests

Fix for Shipping Price.

Merge pull request #26 from GetResponse/develop

Develop

version 7.0.0

Merge branch 'develop' into 'master'

Develop

See merge request integrations/share-code-plugin!54

**Refactoring**

- Mostly, Changed code structure

Merge branch 'develop' into 'master'

Develop

See merge request integrations/share-code-plugin!46

Merge branch 'develop' into 'master'

Develop

See merge request integrations/share-code-plugin!44