Enable the use of a different strategy on deployments

[GeiserX]

Description of the change

The change is simple. I just wrote the needed template to be able to set the strategy.

Benefits

You can select a different strategy, for instance, Recreate. The default is RollingUpdate, which cause trouble to the upgrades, as the PVC is attached to the running instance.

Possible drawbacks

None

Applicable issues

I haven't filled in an issue

Additional information

None

Checklist

• [X] Chart version bumped in Chart.yaml according to semver.
• [X] Variables are documented in the README.md

[dirsigler]

@DrumSergio thank you very much for your contribution! I think that sounds useful, so please go ahead and add the changes, values and a Chart version bump.

The Chart README is automatically updated after installing the pre-commit framework and installing or running the hooks locally.

[GeiserX]

Changes added. Feel free to modify at wish

[dirsigler]

Thank you very much @DrumSergio !