### Release note

Resolves elastic#158172

Fixes an issue where alerting on Synthetics monitors could sometimes
become delayed.

## Summary
Adjust alerting timing to account for alerting framework delays.

Alert executors do not fire perfectly on the specified interval (in our
case, every 1 minute). They are typically delayed a few seconds, be can
especially delayed if the customer does not have their alerting settings
configured to scale and there is no CPU available to take on the
scheduled task.

This PR accounts for small delays in the alerting framework, by
subtracting an additional 1 minute from the `from` value for our current
status query.

(cherry picked from commit d549500)

# Backport

This will backport the following commits from `main` to `8.8`:
- [[Synthetics] adjust alert timing
(#159511)](#159511)

<!--- Backport version: 8.9.7 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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BACKPORT-->

Co-authored-by: Dominique Clarke <dominique.clarke@elastic.co>

* main: (199 commits)
  [Lens] Add custom formatter within the Lens editor (elastic#158468)
  [Uptime] Hide app if no data is available (elastic#159118)
  [CodeEditor] Add grok highlighting (elastic#159334)
  Expose decoded cloudId components from the cloud plugin's contract (elastic#159442)
  [Profiling] Use collector and symbolizer integrations in the add data page (elastic#159481)
  [Infrastructure UI] Hosts View: Unified Search bar with auto-refresh enabled (elastic#157011)
  [APM] Add feature flag for not available apm schema (elastic#158911)
  [Lens] Remove deprecated componentWillReceiveProps usage (elastic#159502)
  [api-docs] 2023-06-13 Daily api_docs build (elastic#159536)
  [data views] Use versioned router for REST routes (elastic#158608)
  [maps] fix geo line source not loaded unless maps application is opened (elastic#159432)
  [Enterprise Search][Search application]Fix Create Api key url (elastic#159519)
  [Security Solution] Increase timeout for indexing hosts (elastic#159518)
  dashboard Reset button disable (elastic#159430)
  [Security Solution] Unskip Endpoint API tests after package fix (elastic#159484)
  [Synthetics] adjust alert timing (elastic#159511)
  [ResponseOps][rule registry] Remove usages of `refresh: true` (elastic#159252)
  Revert "Remove unused package (elastic#158597)"
  [Serverless] Adding config to disable authentication on task manager background worker utilization API (elastic#159505)
  Remove unused package (elastic#158597)
  ...