[Exporter] Fix generation of references to users for user directories (#4297)

## Changes
<!-- Summary of your changes that are easy to understand -->

During refactoring, the exact references to user's home were removed,
leading to the problems with references when doing initial import

## Tests
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How is this tested? Please see the checklist below and also describe any
other relevant tests
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- [x] `make test` run locally
- [ ] relevant change in `docs/` folder
- [ ] covered with integration tests in `internal/acceptance`
- [ ] relevant acceptance tests are passing
- [ ] using Go SDK

Co-authored-by: Tanmay Rustagi <[email protected]>

Author: alexott

exporter/importables.go

@@ -2271,6 +2271,8 @@ var resourcesMap map[string]importable = map[string]importable{
 		},
 		Body: resourceOrDataBlockBody,
 		Depends: []reference{
+			{Path: "path", Resource: "databricks_user", Match: "home"},
+			{Path: "path", Resource: "databricks_service_principal", Match: "home"},
 			// TODO: it should try to find longest reference to another directory object that it not itself...
 			{Path: "path", Resource: "databricks_user", Match: "home",
 				MatchType: MatchPrefix, SearchValueTransformFunc: appendEndingSlashToDirName},