[v10.1.x] Docs: Reduce location indentation to match time_interval_spec (#77610)

Docs: Reduce `location` indentation to match time_interval_spec (#77291)

Reduce location indentation to match time_interval_spec

https://prometheus.io/docs/alerting/latest/configuration/#time_interval_spec

Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
(cherry picked from commit 577b3f2fb2)

Co-authored-by: littlelionking <124090330+littlelionking@users.noreply.github.com>

docs/sources/alerting/set-up/provision-alerting-resources/file-provisioning/index.md

@@ -652,7 +652,7 @@ muteTimes:
       - times:
           - start_time: '06:00'
             end_time: '23:59'
-            location: 'UTC'
+        location: 'UTC'
         weekdays: ['monday:wednesday', 'saturday', 'sunday']
         months: ['1:3', 'may:august', 'december']
         years: ['2020:2022', '2030']