chore: align fetching a single vs multiple enrollments [DHIS2-18791]

[enricocolasante]

Use the same path to retrieve one enrollment and multiple enrollments.
In order to achieve that when getting one enrollment we are using the get multiple enrollments method and return a NotFoundException if something goes wrong (this is sometimes replacing the previous ForbiddenException because the multiple enrollment method is filtering out inaccessible enrollments. This is working the same way in event exporter).

Other changes

• Assign ACCESSIBLE as default value to orgUnitMode in EnrollmentOperationParams.
• Use UserDetails.fromUser to properly initialize search and capture scope for users in tests.
• Fixing tests inject user with the right scope.
• Fixing tests to assert the right exception. (NotFoundException instead of ForbiddenException)

[codecov]

Codecov Report

Attention: Patch coverage is 82.05128% with 7 lines in your changes missing coverage. Please review.

Project coverage is 67.39%. Comparing base (73ccf63) to head (22e50cc).
Report is 10 commits behind head on master.

Files with missing lines	Patch %	Lines
...er/export/enrollment/DefaultEnrollmentService.java	83.78%	6 Missing ⚠️
...est/src/main/java/org/hisp/dhis/test/TestBase.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             master   #19705       +/-   ##
=============================================
+ Coverage     49.00%   67.39%   +18.39%     
- Complexity      257      640      +383     
=============================================
  Files          3481     3481               
  Lines        126225   126253       +28     
  Branches      14157    14153        -4     
=============================================
+ Hits          61851    85086    +23235     
+ Misses        59002    34722    -24280     
- Partials       5372     6445     +1073     

Flag	Coverage Δ
integration	49.01% <82.05%> (+0.01%)	⬆️
integration-h2	34.28% <0.00%> (?)
unit	31.52% <0.00%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...r/export/enrollment/EnrollmentOperationParams.java	89.28% <ø> (ø)
...dhis/tracker/export/event/DefaultEventService.java	87.50% <ø> (ø)
...his/tracker/export/event/EventOperationParams.java	95.23% <ø> (ø)
...ort/trackedentity/DefaultTrackedEntityService.java	93.52% <100.00%> (-0.03%)	⬇️
...tracker/export/event/EventRequestParamsMapper.java	95.09% <ø> (+13.36%)	⬆️
...est/src/main/java/org/hisp/dhis/test/TestBase.java	0.00% <0.00%> (ø)
...er/export/enrollment/DefaultEnrollmentService.java	91.45% <83.78%> (-1.53%)	⬇️

... and 1278 files with indirect coverage changes

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud