docs(website): Fix config extension typo in Windows command (from-source.md)

[tenghuanhe]

Corrects the configuration file extension in the Windows startup command for Vector. The original command .\target\release\vector --config config\vector.toml incorrectly used TOML extension, while Vector's actual config file is YAML format.

Summary

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.

Notes

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References

[bits-bot]

All committers have signed the CLA.

[pront]

Thanks @tenghuanhe