Preprocessor azure

[winklerj]

What has changed?
All of the changes are in the secret service

• Added Azure preprocessor to capture the preferred_username property from the JWT token
• Fixed a bug where the refresh token was being saved to refresh_token in the secret instead of refreshToken. Because of this the new refresh_token wasn't saved to the secret when refreshing the access_token.

Does a specific change require especially careful review?

I have reproduced the issues and tested them with this container https://hub.docker.com/layers/blendededge/secret-service/22.2.1/images/sha256-2c5b625df3b3a4266cf7c1d35b4a9e9fafec2b4d80da15ba22849d8a932eba3e?context=explore

What is still open or a known issue?
None

Release Notes

• Added Azure preprocessor to capture the preferred_username property from the JWT token
• Fixed a bug where the refresh token was being saved to refresh_token in the secret instead of refreshToken. Because of this the new refresh_token wasn't saved to the secret when refreshing the access_token.