Hard depend on libnbd >= 1.24

This is not actually necessary for Fedora.  But for RHEL 10.2, where
we partially backported some 1.24 APIs to libnbd 1.22, the libnbd 1.22
package now provides LIBNBD_1.24 versioned symbols.  However not all
of them, so for example virt-v2v can fail with:

virt-v2v: symbol lookup error: virt-v2v: undefined symbol: nbd_get_handle_size, version LIBNBD_1.24

Practically this means that you can update virt-v2v to RHEL 10.2, but
leave libnbd from RHEL 10.1, and virt-v2v will then fail to run.

Adding a hard dependency avoids this problem, and is fine for Fedora too.

Related: https://issues.redhat.com/browse/RHEL-140894

virt-v2v.spec

@@ -79,7 +79,7 @@ BuildRequires: bash-completion-devel
 BuildRequires: file
 BuildRequires: gettext-devel
 BuildRequires: json-c-devel
-BuildRequires: libnbd-devel >= 1.22
+BuildRequires: libnbd-devel >= 1.24
 BuildRequires: libosinfo-devel
 BuildRequires: libvirt-daemon-kvm
 BuildRequires: libvirt-devel
@@ -146,7 +146,7 @@ Requires:      edk2-aarch64
 %if !%{with_ovirt}
 Requires:      /usr/bin/python3
 %endif
-Requires:      libnbd >= 1.22
+Requires:      libnbd >= 1.24
 Requires:      %{_bindir}/qemu-nbd
 Requires:      %{_bindir}/nbdcopy
 Requires:      %{_bindir}/nbdinfo