Require helm version 3.10 or newer

[lhotari]

Motivation

Installing with helm v3.7.1 fails with this error message:

Error: INSTALLATION FAILED: template: pulsar/templates/broker-statefulset.yaml:270:52: executing
 "pulsar/templates/broker-statefulset.yaml" at <eq .Values.broker.storageOffload.driver "aws-s3">: 
error calling eq: incompatible types for comparison

Modifications

• Add check that verifies that Helm version is >= 3.10 (Helm 3.10.0 was released in September 2022)
• Add CI test that verifies that installing the chart works with Helm 3.10.0

Verifying this change

• Make sure that the change passes the CI checks.

[frankjkelly]

Thank @lhotari LGTM

[lhotari]

Thanks for the review @frankjkelly