[Backport 1.x] Backport automountServiceAccountToken from 2.x to 1.x

[rdvansloten]

Description

As requested, this feature from issue #425 is now backported into v1

Issues Resolved

425

Check List

• [x] Commits are signed per the DCO using --signoff

For any changes to files within Helm chart directories:

• [x] Helm chart version bumped
• [x] Helm chart CHANGELOG.md updated to reflect change

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[rdvansloten]

@prudhvigodithi per your request on #425 🙂