fix: Use copy instead of move for Sipi file migration

[irinaschubert]

Pull Request Checklist

Task Description/Number

Issue Number: DEV-

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

[BalduinLandolt]

LGTM

[codecov]

Codecov Report

Patch coverage: 25.64% and project coverage change: +0.06 🎉

Comparison is base (5eaf212) 18.11% compared to head (3721a57) 18.18%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2655      +/-   ##
==========================================
+ Coverage   18.11%   18.18%   +0.06%     
==========================================
  Files         272      277       +5     
  Lines       28871    28900      +29     
==========================================
+ Hits         5231     5255      +24     
- Misses      23640    23645       +5     

Impacted Files	Coverage Δ
webapi/src/main/scala/dsp/config/AppConfig.scala	0.00% <ø> (ø)
...i/src/main/scala/dsp/valueobjects/LangString.scala	100.00% <ø> (ø)
...c/main/scala/dsp/valueobjects/SchemaCommands.scala	100.00% <ø> (ø)
...la/org/knora/webapi/messages/StringFormatter.scala	51.87% <ø> (-0.10%)	⬇️
.../scala/org/knora/webapi/messages/XmlPatterns.scala	100.00% <ø> (ø)
...sponder/projectsmessages/ProjectsMessagesADM.scala	43.44% <ø> (ø)
...min/responder/usersmessages/UsersMessagesADM.scala	39.81% <0.00%> (-3.27%)	⬇️
...api/messages/store/sipimessages/SipiMessages.scala	0.00% <0.00%> (ø)
...a/webapi/messages/util/search/QueryTraverser.scala	1.28% <ø> (+0.15%)	⬆️
...ravsearch/prequery/AbstractPrequeryGenerator.scala	0.00% <ø> (ø)
... and 36 more

... and 5 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.