tests: modify tarball_multi 2023.09 test

The install.sh has been updated to include more directories,
so recreating 2023.09 will cause a mismatch in installed install.sh.
Exclude the known difference in the test case.

Suggested-by: Marc Herbert <marc.herbert@intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

tests/tests.bats

@@ -198,6 +198,10 @@ test_install_one_version()
 
     tar xf sof-bin-"$ver".tar.gz
 
+    # install.sh was updated in 2024.03, so it won't match
+    # anymore
+    git show v2023.12.1:install.sh > "$(pwd)/sof-bin-$ver"/install.sh
+
     diff -qr "$EXTR_REFS"/sof-bin-"$ver"  "$(pwd)/sof-bin-$ver"/
 
     popd || exit 1