Remove yajl daemon dep and replace with jansson

In libguestfs we removed the need to yajl back in libguestfs 1.40 (Feb
2018).  However this persisted in the spec file until now.  Remove the
yajl dep, but add the dep on jansson (the replacement json library
that we are using now).

libguestfs.spec

@@ -50,7 +50,7 @@ Summary:       Access and modify virtual machine disk images
 Name:          libguestfs
 Epoch:         1
 Version:       1.52.0
-Release:       4%{?dist}
+Release:       5%{?dist}
 License:       LGPL-2.1-or-later
 
 # Build only for architectures that have a kernel
@@ -271,7 +271,6 @@ BuildRequires: util-linux
 BuildRequires: vim-minimal
 BuildRequires: xfsprogs
 BuildRequires: xz
-BuildRequires: yajl
 %if !0%{?rhel}
 BuildRequires: zerofree
 %endif
@@ -294,6 +293,7 @@ Requires:      (%{name}-appliance = %{epoch}:%{version}-%{release} or %{name}-no
 # The daemon dependencies are not included automatically, because it
 # is buried inside the appliance, so list them here.
 Requires:      augeas-libs%{?_isa} >= 1.7.0
+Requires:      jansson%{?_isa}
 Requires:      libacl%{?_isa}
 Requires:      libcap%{?_isa}
 Requires:      libselinux%{?_isa}
@@ -301,7 +301,6 @@ Requires:      hivex-libs%{?_isa} >= 1.3.10
 Requires:      pcre2%{?_isa}
 Requires:      rpm-libs%{?_isa} >= 4.16.1.3
 Requires:      systemd-libs%{?_isa}
-Requires:      yajl%{?_isa}
 
 # For core mount-local (FUSE) API.
 Requires:      fuse
@@ -1100,9 +1099,10 @@ rm ocaml/html/.gitignore
 
 
 %changelog
-* Mon Jan 15 2024 Richard W.M. Jones <rjones@redhat.com> - 1:1.52.0-4
+* Mon Jan 15 2024 Richard W.M. Jones <rjones@redhat.com> - 1:1.52.0-5
 - Use curl instead of wget, since wget2 is broken
   (https://gitlab.com/gnuwget/wget2/-/issues/652)
+- Remove yajl daemon dep and replace with jansson.
 
 * Tue Jan  9 2024 Richard W.M. Jones <rjones@redhat.com> - 1:1.52.0-3
 - Make cache directory find more robust