Update Loki to 3.2.1

This MR contains the following updates:

Package	Update	Change
docker.io/grafana/loki-canary	minor	3.1.1 -> 3.2.1
gluon	patch	0.5.4 -> 0.5.8
ironbank/opensource/grafana/loki (source)	minor	3.1.1 -> 3.2.0
registry1.dso.mil/ironbank/kiwigrid/k8s-sidecar (source)	minor	1.27.5 -> 1.28.0
registry1.dso.mil/ironbank/opensource/grafana/loki (source)	minor	3.1.1 -> 3.2.0
registry1.dso.mil/ironbank/opensource/kubernetes/kubectl (source)	minor	v1.29.8 -> v1.30.5
registry1.dso.mil/ironbank/opensource/memcached/memcached (source)	patch	1.6.30 -> 1.6.31
registry1.dso.mil/ironbank/opensource/nginx/nginx (source)	minor	1.26.2 -> 1.27.2

Complete MR checklist

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• Followed upgrade instructions outlined in docs/DEVELOPMENT_MAINTENANCE.md
• Update Docs with new/updated steps as needed
• Tested and Validated Changes made with supporting info like logs or screenshots from test pipelines

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• Tested and Validated changes

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Upgrade Notices

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