Errors and warnings are not removed from the problems tab when closing the tab/editor containing them

**Describe the bug**
I would like to be able to use `F8` to navigate between my repo's problems. The current problem I'm facing is that the `problems` list is polluted by github-actions warnings (that are wrong so I cannot fix them). Closing the file with the warning does not remove them from the list so I need to close my entire vs-code to clear them.

Even worse, if I open a diff, or if I open a previous revision of the file, it will add warnings for that revision.

**To Reproduce**
Steps to reproduce the behavior:
1. Take a workflow with warnings or errors and open it in an editor
2. Close the editor (by editor I mean the opened tab, not vscode itself)
3. The errors remain in the problems tab

**Expected behavior**
When I close the tab with the github workflow, I expect the warnings/errors to be removed from the list.

**Screenshots**
Errors remain when no editor/tab is opened.

**Extension Version**
`v0.26.3`

Reproduce esto con vscode-github-actions v0.26.3 abriendo un workflow con advertencias, cerrando su pestaña del editor y comprobando la pestaña Problems. Compara los diagnósticos del archivo original con los de un diff o una revisión anterior. Se considera terminado cuando las advertencias y los errores de los editores cerrados ya no permanecen en Problems, mientras que los diagnósticos de los editores abiertos siguen apareciendo.

Escrito por el modelo de indexación a partir del texto del issue.