fix: Fix Sipi get file response if dsp-api responds with Not Found during permission check (NO-TICKET)

[seakayone]

Pull Request Checklist

Task Description/Number

Bugfix:

• Given a 404 during Sipi's permission check for a file then Sipi should return Not Found

Other changes:

• Add SipiIT tests for existing file and different permissions

Issue Number: NO-TICKET

Basic Requirements

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• fix: represents bug fixes
• refactor: represents production code refactoring
• feat: represents a new feature
• docs: documentation changes (no production code change)
• chore: maintenance tasks (no production code change)
• test: all about tests: adding, refactoring tests (no production code change)
• other... Please describe:

Does this PR introduce a breaking change?

• Yes
• No
• Maybe (not 100% sure => check with FE)

Does this PR change client-test-data?

• Yes (don't forget to update the JS-LIB team about the change)
• No

[codecov]

Codecov Report

Patch coverage: 41.99% and project coverage change: -67.22 ⚠️

Comparison is base (7af1c27) 85.13% compared to head (52394be) 17.92%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2677       +/-   ##
===========================================
- Coverage   85.13%   17.92%   -67.22%     
===========================================
  Files         277      277               
  Lines       28958    28795      -163     
===========================================
- Hits        24654     5161    -19493     
- Misses       4304    23634    +19330     

Impacted Files	Coverage Δ
.../org/knora/webapi/messages/OntologyConstants.scala	98.35% <0.00%> (-1.27%)	⬇️
...min/responder/listsmessages/ListsMessagesADM.scala	0.00% <0.00%> (-70.71%)	⬇️
...rmissionsmessages/PermissionsMessagesUtilADM.scala	70.45% <0.00%> (-29.55%)	⬇️
...knora/webapi/messages/util/PermissionUtilADM.scala	32.53% <0.00%> (-53.02%)	⬇️
...rg/knora/webapi/messages/util/rdf/JsonLDUtil.scala	38.73% <0.00%> (-38.07%)	⬇️
...a/webapi/messages/util/search/QueryTraverser.scala	1.29% <ø> (-91.01%)	⬇️
...nora/webapi/messages/util/search/SparqlQuery.scala	0.00% <ø> (-82.25%)	⬇️
...ravsearch/prequery/AbstractPrequeryGenerator.scala	0.00% <0.00%> (-85.72%)	⬇️
...search/prequery/InferenceOptimizationService.scala	3.12% <0.00%> (-84.76%)	⬇️
...gravsearch/transformers/ConstructTransformer.scala	6.66% <0.00%> (-63.34%)	⬇️
... and 44 more

... and 172 files with indirect coverage changes

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[BalduinLandolt]

Cool!