Update and implement additional integration tests for Organization service

[PavloPetrina]

We need to implement new integration tests and update the existing ones to bring more clarity for potential users thus pls:

Update the following tests for API:

• fail to create Org with undefined email №4
• fail to get non-existent Org №17
• fail to update non-existent Org №25
• fail to leaveOrganization if the user not a member №32
• fail to leave non-existent Org №33
• deleteOrganizationApiKey which doesn't exists №47
• inviteMember who already exists №53

Implement the following tests for API:

• fail to create Org with empty/undefined name №5.1
• Fail to add the API key (token) for a non-existent Org №42.1
• admin fails to deleteOrganizationApiKey Owner №44.1
• Fail to delete the API key (token) from non-existent Org №48.1
• fail to deleteOrganizationApiKey if the requester isn't the manager №45
• fail to inviteMember with the invalid role №54
• Fail to inviteMember to non-existent Org №58.1
• fail to kickoutMember as the non-existent user №66
• Fail to kickoutMember from non-existent Org №71.1
• fail to updateOrganizationMemberRole to invalid role №86
• Fail to update some member role in the non-existent Org №91.1