fix: remove double cache write in ObjectStoreStorage::touch

[icewind1991]

the file_put_contents already puts all of those values into the cache

[come-nc]

@icewind1991 This broke CI:

There was 1 failure:

1) OCA\files_versions\tests\StorageTest::testExpireMaxAge
Failed asserting that actual size 3 matches expected size 2.

/home/runner/work/server/server/apps/files_versions/tests/StorageTest.php:80

https://github.com/nextcloud/server/actions/runs/15742834106/job/44373600796

This has been failing consistently on master since this PR was merged.

[icewind1991]

Fix for test failures: #53650