Update grafana/loki Docker tag to v2.7.5

[renovate]

This PR contains the following updates:

Package	Update	Change
grafana/loki	patch	2.7.2 -> 2.7.5

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Release Notes

grafana/loki

v2.7.5

Compare Source

Loki

Fixes

• 7924 jeschkies: Flush buffered logger on exit

v2.7.4

Compare Source

Loki

Fixes

• 8531 garrettlish: logql: fix panics when cloning a special query
• 8120 ashwanthgoli: fix panic on hitting /scheduler/ring when ring is disabled.
• 7988 ashwanthgoli: store: write overlapping chunks to multiple stores.
• 7925 sandeepsukhani: Fix bugs in logs results caching causing query-frontend to return logs outside of query window.

Build

• 8575 MichelHollands: Update build image to go 1.20.1 and alpine 3.16.4.
• 8583 MichelHollands: Use 0.28.1 build image and update go and alpine versions.

Promtail

Enhancements

Fixes

• 8497 kavirajk: Fix cri tags treating different streams as the same
• 7771 GeorgeTsilias: Handle nil error on target Details() call.
• 7461 MarNicGit: Promtail: Fix collecting userdata field from Windows Event Log

v2.7.3

Compare Source

Loki

Fixes

• 8340 MasslessParticle Fix bug in compactor that caused panics when startTime and endTime of a delete request are equal.

Build

• 8232 TaehyunHwang Fix build issue that caused --version to show wrong version for Loki and Promtail binaries.

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