[stable-3.6] Fix link shares default expire date being enforced as maximum expire date even when maximum date enforcement is disabled on the server

[backportbot-nextcloud]

backport of #4982

[codecov]

Codecov Report

Merging #5048 (d8649e6) into stable-3.6 (1f5498c) will not change coverage.
The diff coverage is n/a.

❗ Current head d8649e6 differs from pull request most recent head a834ac6. Consider uploading reports for the commit a834ac6 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           stable-3.6    #5048   +/-   ##
===========================================
  Coverage       57.17%   57.17%           
===========================================
  Files             138      138           
  Lines           17160    17160           
===========================================
  Hits             9812     9812           
  Misses           7348     7348           

Impacted Files	Coverage Δ
src/libsync/propagateremotedelete.cpp	54.90% <0.00%> (-1.10%)	⬇️
src/libsync/propagateremotemkdir.cpp	64.53% <0.00%> (-0.71%)	⬇️
src/libsync/propagateremotemove.cpp	81.65% <0.00%> (-0.49%)	⬇️
src/libsync/syncengine.cpp	86.72% <0.00%> (-0.48%)	⬇️
src/libsync/discoveryphase.cpp	72.34% <0.00%> (-0.21%)	⬇️
src/libsync/account.cpp	38.22% <0.00%> (-0.16%)	⬇️
src/libsync/propagatedownload.cpp	65.13% <0.00%> (-0.06%)	⬇️
src/libsync/discovery.cpp	84.33% <0.00%> (+0.05%)	⬆️
src/libsync/propagateuploadv1.cpp	69.44% <0.00%> (+0.17%)	⬆️
src/libsync/bandwidthmanager.cpp	38.78% <0.00%> (+0.18%)	⬆️
... and 3 more

[claucambra]

/rebase

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication

[nextcloud-desktop-bot]

AppImage file: nextcloud-PR-5048-a834ac6d1635ebec0804a23d010dc89473177247-x86_64.AppImage

To test this change/fix you can simply download above AppImage file and test it.

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