[8.4](backport #1286) Fix: Windows Agent Left Unhealthy After Removing Endpoint Integration

[mergify]

This is an automatic backport of pull request #1286 done by Mergify.
Cherry-pick of a8ad2da has failed:

On branch mergify/bp/8.4/pr-1286
Your branch is up to date with 'origin/8.4'.

You are currently cherry-picking commit a8ad2da852.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   changelog/fragments/1666611696-fix_service_stop_timeout.yaml
	modified:   internal/pkg/agent/operation/monitoring.go
	modified:   internal/pkg/agent/operation/monitoring_test.go
	modified:   internal/pkg/agent/program/spec.go
	modified:   internal/pkg/agent/program/spec_test.go
	modified:   internal/pkg/core/plugin/service/app.go
	modified:   internal/spec/endpoint.yml

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   internal/pkg/agent/program/supported.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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• Start Time: 2022-10-25T13:32:40.121+0000

• Duration: 15 min 54 sec

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Total	4968

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	97.297% (72/74)	👍
Files	68.559% (157/229)	👍
Classes	68.805% (311/452)	👍
Methods	52.574% (868/1651)	👍
Lines	38.881% (9406/24192)	👎 -0.035
Conditionals	100.0% (0/0)	💚