[auto-bump][chart] istio-1.11.6

[d2iq-dispatch]

What type of PR is this?

Feature

What this PR does/ why we need it:

This allows setting custom servicemonitor labels in chart values. This allows us to update servicemonitor labels in response to changes in Prometheus configuration without modifying this chart.

Which issue(s) this PR fixes:

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Checklist

• If a chart is changed, the chart version is correctly incremented.
• The commit message explains the changes and why are needed.
• The code builds and passes lint/style checks locally.
• The relevant subset of integration tests pass locally.
• The core changes are covered by tests.
• The documentation is updated where needed.

[d2iq-mergebot]

This repo has @mesosphere-mergebot integration. You can perform the following commands by submitting a comment. Submit a comment with content "@mesosphere-mergebot help" to view more detailed help text and examples. Be sure the have a look at the mergebot documentation, too.

@mesosphere-mergebot backport