fix: Fix loki ruler generator url left parameter url encoding

[matthewhudsonedb]

What this PR does / why we need it:
The generate URL left parameter is not URL encoded. The double quotas in str variable around "queries" break hyperlinking.

Which issue(s) this PR fixes:
Fixes #15597

Special notes for your reviewer:

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• Title matches the required conventional commits format, see here
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[CLAassistant]

All committers have signed the CLA.

[chaudum]

Thanks! LGMT