Fails autopkgtests when tested against fuse3 >= 3.13

[Lukas Märdian]

The autopkgtest in `tests/test-rofiles-fuse.sh` (executed via `gnome-desktop-testing-runner libostree/test-rofiles-fuse.sh.test`) fails to execute `setfattr -n user.foo -v bar mnt/anewfile-for-fuse` with the error message "setfattr: mnt/anewfile-for-fuse: Numerical result out of range".

It's unclear if this is related to glibc, FUSE_USE_VERSION, kernel fuse protocol or another component.

On Debian this specific test is skipped, due to missing the "capsh" binary (libcap2-bin) in the test env:
```
/usr/libexec/installed-tests/libostree/libtest.sh: line 688: capsh: command not found
1..0 # SKIP No cap_sys_admin in bounding set, can't use FUSE
```

The relevant log (inside an Ubuntu autopkgtest qemu runner) is provided here:

```
$ ../tests/test-rofiles-fuse.sh
Copying gpghome to /tmp/autopkgtest.Eaudsf/build.b3k/src/tmp4
checking for xattrs.../usr/bin/setfattr
/tmp/autopkgtest.Eaudsf/build.b3k/src/tmp4 /tmp/autopkgtest.Eaudsf/build.b3k/src/tmp4
# testlabel.txt: security.selinux: No such attribute
Unable to retrieve SELinux label, assuming disabled
/tmp/autopkgtest.Eaudsf/build.b3k/src/tmp4
done
checking for overlayfs whiteouts...done
/usr/bin/setfattr
d9793c4639f817fb95e3f1ae7a3f0571826db12a28baffaa3b3510f2ef0434a4
812152c68bb9c0b2a3bfcafeb5c4a4aa53827d8df5eeb755fe307f6a68f0febf
fsck objects (20/20) [=============] 100%
object fsck of 2 commits completed successfully - no errors found.
1..12
a122802794e487785d14b58fe8969ab8716fd5c4c0ceed7de5c76061cd93f896
ok mount
ok failed inplace mutation (open O_TRUNCATE)
ok failed mutation chmod + chown
setfattr: mnt/firstfile-link: Read-only file system
ok new content
setfattr: mnt/anewfile-for-fuse: Numerical result out of range
Unexpected nonzero exit status 1 while running: setfattr -n user.foo -v bar mnt/anewfile-for-fuse
gpg-connect-agent: no running gpg-agent - starting '/usr/bin/gpg-agent'
gpg-connect-agent: waiting for the agent to come up ... (5s)
gpg-connect-agent: connection to agent established
OK closing connection
```

[Graham Inggs (ginggs)]

This is a regression in fuse3 3.13.0, see upstream issue:

https://github.com/libfuse/libfuse/issues/730

Confirmed by modifying the failing command in ostree's tests/test-rofiles-fuse.sh from:

setfattr -n user.foo -v bar mnt/anewfile-for-fuse

to:

setfattr -n 12345678user.foo -v bar mnt/anewfile-for-fuse

[Jeremy Bícha (jbicha)]

https://launchpad.net/ubuntu/+source/fuse3/3.14.0-2