fix(deployment): #22264 add --no-environment to systemd service file at ExecReload

[rsrdesarrollo]

Summary

Add option --no-environment to avoid checking for environment requirements on service reload.
As described in #22264, without this, configurations with sources like splunk_hec will not be able to perform a reload via systemctl.

Change Type

• Bug fix
• New feature
• Non-functional (chore, refactoring, docs)
• Performance

Is this a breaking change?

• Yes
• No

How did you test this PR?

Does this PR include user facing changes?

• Yes. Please add a changelog fragment based on our guidelines.
• No. A maintainer will apply the "no-changelog" label to this PR.

Checklist

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    • cargo clippy --workspace --all-targets -- -D warnings
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References

#22264 #20589

[bits-bot]

All committers have signed the CLA.

[pront]

Thank you @rsrdesarrollo. Can you add a changelog for this please?

[rsrdesarrollo]

No problem, thanks!