KEDA spelling for scaling

[et1975]

This PR closes #1009

The changes in this PR are as follows:

• Change spelling throughout to Utilization

I have read the contributing guidelines and have completed the following:

• [x] Tested my code end-to-end against a live Azure subscription.
• [ ] Updated the documentation in the docs folder for the affected changes.
• [ ] Written unit tests against the modified code that I have made.
• [x] Updated the release notes with a new entry for this PR.
• [ ] Checked the coding standards outlined in the contributions guide and ensured my code adheres to them.

If I haven't completed any of the tasks above, I include the reasons why here:

Seems straightforward.

[isaacabraham]

Thanks for doing this @et1975 - really appreciate it! can you confirm that this fixes the issue or send me a link for the official specs just to show the misspelling issue?

[et1975]

Ran a deployment, looks good:

I'm not sure why this wasn't an issue earlier, but at some point my scale rules started showing up in the logs as errors and apps that used them were failing to deploy. The support ticket discussion indicated this was the issue.

[isaacabraham]

Thank you!

[ninjarobot]

Thanks for the contribution. This is released in 1.7.17 and now available on nuget.