[stable/redis-ha] fix: replace deprecated gitversion with version

[kvanzuijlen]

What this PR does / why we need it:

Capabilities.KubeVersion.GitVersion was deprecated with the release of Helm v3.

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:

Checklist

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

• DCO signed
• Chart Version bumped
• Variables are documented in the README.md
• Title of the PR starts with chart name (e.g. [stable/mychartname])

[DandyDeveloper]

@kvanzuijlen Isn't $.Capabilities.KubeVersion.Version and $.Capabilities.KubeVersion the same thing?

[kvanzuijlen]

@kvanzuijlen Isn't $.Capabilities.KubeVersion.Version and $.Capabilities.KubeVersion the same thing?

I didn't know that, but indeed, after reading the docs, it is. Do you want me to change it to $.Capabilities.KubeVersion?

[DandyDeveloper]

@kvanzuijlen Yes please! If you can merge in master to fix the conflicts as well. Thank you!

[kvanzuijlen]

@DandyDeveloper done!

[DandyDeveloper]

@kvanzuijlen Can you rebase and recommit? Hopefully the tests will pass now.

[kvanzuijlen]

@DandyDeveloper I messed up the rebase, will close and reopen a new PR!