libdatovka-0.5.0: test isds_load_erased_messages fails on fedora-40 (rawhide)

Created from datovka#640 (closed) .

$ configure \
  --enable-doc \
  --disable-online-test \
  --disable-static \
  --enable-test \
  --with-libcurl \
  --disable-fatalwarnings
$ make -O -j3
$ make install DESTDIR=/home/yarda/rpmbuild/BUILDROOT/libdatovka-0.5.0-1.x86_64 INSTALL="/usr/bin/install -p"
$ make check -j3

FAIL: isds_load_erased_messages
===============================

../../test/offline/data/GetListOfErasedMessages-async-response-extracted.xml: Could not open file: No such file or directory
../../test/offline/data/GetListOfErasedMessages-missing-entries.xml: Could not open file: No such file or directory
Testing unit: isds_load_erased_messages
	decompressed XML response: failed
		reason: Could not load test data from `../../test/offline/data/GetListOfErasedMessages-async-response-extracted.xml' file
	decompressed XML response with missing values: failed
		reason: Could not load test data from `../../test/offline/data/GetListOfErasedMessages-missing-entries.xml' file
Test results: unit = isds_load_erased_messages, passed = 0, failed = 2, skipped = 0

FAIL isds_load_erased_messages (exit status: 1)