* feature: switch Azure AD graph API to Microsoft Graph API
* Update CHANGELOG
* Expand Breaking Changes notice
* Update CHANGELOG.md
Co-Authored-By: Joel Speed <Joel.speed@hotmail.co.uk>
* fix: use constant http method
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
* cleaned up source to make golangci-lint pass
* providers/azure_test.go: use build in POST constant
* options_test.go: do not export unnecessary variables
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>