Prepare new release 2.2

[oriolclosa]

No description provided.

[github-actions]

File	Coverage	Lines	Branches		Missing
All files	92%	96%	87%	✅
bananas/__init__.py	79%	83%	75%	❌	19-20
bananas/environment.py	98%	97%	100%	✅	223 229 232
bananas/models.py	97%	100%	95%	✅
bananas/url.py	96%	100%	93%	✅
bananas/admin/extension.py	93%	100%	86%	✅
bananas/admin/api/i18n.py	91%	83%	100%	✅	11
bananas/admin/api/mixins.py	69%	75%	63%	❌	86 94-102 113 129 139-150
bananas/admin/api/serializers.py	75%	100%	50%	❌
bananas/admin/api/versioning.py	91%	100%	83%	✅
bananas/admin/api/views.py	99%	98%	100%	✅	137
bananas/admin/api/schemas/base.py	91%	83%	100%	✅	11
bananas/admin/api/schemas/yasg.py	88%	95%	82%	✅	92 101 140-141
bananas/drf/fencing.py	87%	94%	80%	✅	91-97 136
bananas/management/commands/syncpermissions.py	87%	95%	80%	✅	32

Minimum allowed coverage is 85%

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