Update grafana/loki Docker tag to v2.9.7

This MR contains the following updates:

Package	Type	Update	Change
grafana/loki		patch	2.9.6 -> 2.9.7
grafana/loki	ironbank-docker	patch	2.9.6 -> 2.9.7
grafana/loki	stage	patch	2.9.6 -> 2.9.7

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Release Notes

grafana/loki (grafana/loki)

v2.9.7

Compare Source

Bug Fixes

• Bump go to 1.21.9 and build image to 0.33.1 (#​12542) (efc4d2f)

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