[xray]Added support for service account annotations

[evanshoshan]

PR Checklist

[Place an '[x]' (no spaces) in all applicable fields. Please remove unrelated fields.]

• [x ] Chart Version bumped
• [x ] CHANGELOG.md updated
• [ x] Variables and other changes are documented in the README.md
• [x ] Title of the PR starts with chart name (e.g. [artifactory])

What this PR does / why we need it:

This PR allows for the configuring of service account annotations.

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

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[evanshoshan]

I have read the CLA Document and I hereby sign the CLA

[evanshoshan]

recheck

[evanshoshan]

I have read the CLA Document and I hereby sign the CLA

[rhys96]

This would be very helpful, I'm having to create my own Service Account to add annotations. Is anyone from JFrog able to give an update?

[megha1906]

@evanshoshan Thanks for the PR. We will check this internally and will fix this in the upcoming versions of Xray. cc @rahulsadanandan