fix: add extraEnvFrom to the global variables in the helm chart

[simonfelding]

What this PR does / why we need it: Makes the helm values.yaml work like the documentation in values.yaml says it does.

Which issue(s) this PR fixes: N/A

Special notes for your reviewer:

Checklist

• [x] Reviewed the CONTRIBUTING.md guide (required)
• [ ] Documentation added
• [ ] Tests updated
• [x] Title matches the required conventional commits format, see here
• [x] Changes that require user attention or interaction to upgrade are documented in docs/sources/setup/upgrade/_index.md
• [x] For Helm chart changes bump the Helm chart version in production/helm/loki/Chart.yaml and update production/helm/loki/CHANGELOG.md and production/helm/loki/README.md. Example PR
• [x] If the change is deprecating or removing a configuration option, update the deprecated-config.yaml and deleted-config.yaml files respectively in the tools/deprecated-config-checker directory. Example PR

[CLAassistant]

All committers have signed the CLA.

[simonfelding]

This is in reference to this line: https://github.com/grafana/loki/blob/c9c0e9a5282b9fc07604c3b257358693df8f4aaa/production/helm/loki/values.yaml#L114

[simonfelding]

Also solves https://github.com/grafana/loki/issues/11391

[MichelHollands]

@simonfelding Thanks for this contribution. The documentation hasn't been updated as mentioned in the failing CI step. Can you fix this? Once that is done I'll merge this.

[simonfelding]

@MichelHollands Thanks for the quick response. I've tried running make -C docs sources/setup/install/helm/reference.md as the CI step says, but it doesn't change anything so there is nothing to commit. Any clues on what to do?

[simonfelding]

@MichelHollands ping :)

[MichelHollands]

@MichelHollands ping :)

Can you remove that file and rerun the make step? Also please update the version everywhere.