fix: Exclude special characters in searchbylabel search (DEV-1446)

[irinaschubert]

Issue Number: DEV-1446

Pull Request Checklist

Basic Requirements

Please check if your PR fulfills the following requirements:

• [x] 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?

• [x] Bugfix: represents bug fixes
• [ ] Refactor: represents production code refactoring
• [ ] Feature: represents a new feature
• [ ] Documentation: documentation changes (no production code change)
• [ ] Chore: maintenance tasks (no production code change)
• [ ] Style: styles updates (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
• [x] No

Does this PR change client-test-data?

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

Other information

[swarmia[bot]]

✅  Linked to Bug DEV-1446 · DSP-API: searchbylabel doesn't find strings with "-"

[codecov[bot]]

Codecov Report

Base: 86.85% // Head: 86.99% // Increases project coverage by +0.13% :tada:

Coverage data is based on head (b79723d) compared to base (c5c98ce). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2269      +/-   ##
==========================================
+ Coverage   86.85%   86.99%   +0.13%     
==========================================
  Files         241      242       +1     
  Lines       27967    28066      +99     
==========================================
+ Hits        24292    24415     +123     
+ Misses       3675     3651      -24     

Impacted Files	Coverage Δ
...c/main/scala/org/knora/webapi/core/AppServer.scala	89.55% <ø> (ø)
...ebapi/instrumentation/InstrumentationSupport.scala	100.00% <ø> (ø)
...p-shared/src/main/scala/dsp/valueobjects/Iri.scala	94.18% <100.00%> (-0.14%)	:arrow_down:
...sp-shared/src/main/scala/dsp/valueobjects/V2.scala	89.85% <100.00%> (+5.79%)	:arrow_up:
.../org/knora/webapi/messages/OntologyConstants.scala	99.62% <100.00%> (+<0.01%)	:arrow_up:
...la/org/knora/webapi/messages/StringFormatter.scala	90.18% <100.00%> (+0.01%)	:arrow_up:
...sp-shared/src/main/scala/dsp/valueobjects/Id.scala	65.38% <0.00%> (-3.85%)	:arrow_down:
...n/scala/org/knora/webapi/routing/HealthRoute.scala	69.81% <0.00%> (-1.89%)	:arrow_down:
...r/permissionsmessages/PermissionsMessagesADM.scala	86.39% <0.00%> (-0.32%)	:arrow_down:
...ages/util/search/gravsearch/GravsearchParser.scala	68.13% <0.00%> (-0.26%)	:arrow_down:
... and 13 more

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