Update Helm release loki to v3.2.0

This MR contains the following updates:

Package	Update	Change
loki (source)	minor	3.1.0 -> 3.2.0

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Release Notes

grafana/helm-charts

v3.2.0

Helm chart for Grafana Loki in simple, scalable mode

Source commit: https://github.com/grafana/loki/commit/3e7e44400a0c8c36d5a4a2da77590ceaa42fcb0e

Tag on source: https://github.com/grafana/loki/releases/tag/helm-loki-3.2.0

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Configuration

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