chore(deps): update grafanaagent docker tag to v0.35.4

This MR contains the following updates:

Package	Update	Change
GrafanaAgent	patch	v0.35.3 -> v0.35.4

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Release Notes

grafana/agent (GrafanaAgent)

v0.35.4

Compare Source

Bugfixes

• Sign RPMs with SHA256 for FIPs compatbility. (@​mattdurham)

• Fix issue where corrupt WAL segments lead to crash looping. (@​tpaschalis)

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