[stable27] fix(dav): Restrict properties allowed object classes

[backportbot]

Backport of #55851 and #55751

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[come-nc]

/backport! to stable26

[come-nc]

/backport! to stable25

[come-nc]

/backport! to stable24

[backportbot]

The backport to stable24 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable24
git pull origin stable24
# Create the new backport branch
git checkout -b backport/55856/stable24
# Cherry pick the change from the commit sha1 of the change against the default branch# This might cause conflicts, resolve them
git cherry-pick 3bdbd3b4 cfe6b46c b2ba91be
# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/55856/stable24

Error: Failed to check for changes with origin/stable24: No changes found in backport branch

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[come-nc]

/backport! to stable24

Not needed.