Run maintenance operations for all repos in RepositoryTrackingInfo

[max-zaytsev]

SourceFolder.json has RepositoryTrackingInfo property where all fetched repos are listed.
Previously, we only ran maintenance operations for build_sourcesdirectory
Fixed this to run for sources directories from RepositoryTrackingInfo

{
  "build_artifactstagingdirectory": "2\\a",
  "agent_builddirectory": "2",
  "collectionUrl": "https://dev.azure.com/org/",
  "definitionName": "multi-stage-with-resources",
  "repositoryTrackingInfo": [
    {
      "identifier": "self",
      "repositoryType": "Git",
      "repositoryUrl": "https://org@dev.azure.com/proj/test/_git/test",
      "sourcesDirectory": "2\\Projects\\Cores\\test"
    },
    {
      "identifier": "test2",
      "repositoryType": "git",
      "repositoryUrl": "https://org@dev.azure.com/proj/test/_git/test2",
      "sourcesDirectory": "2\\Projects\\Cores\\test2"
    }
  ],
  "fileFormatVersion": 3,
  "lastRunOn": "04/19/2022 11:19:12 +03:00",
  "repositoryType": "Git",
  "lastMaintenanceAttemptedOn": "04/21/2022 17:32:06 +03:00",
  "lastMaintenanceCompletedOn": "04/21/2022 17:32:11 +03:00",
  "build_sourcesdirectory": "2\\s",
  "common_testresultsdirectory": "2\\TestResults",
  "collectionId": "240741e6-a501-4c02-b604-5a6394254a7e",
  "definitionId": "11",
}

[max-zaytsev]

It looks like sourcesDirectory from repositoryTrackingInfo in SourceFolder.json does not always point to the actual location of the git repository
This need to be fixed in order to run maintenance jobs for all repos in agent folder