security/heimdal: Add perl JSON module as build dependency
This fixes the following build error being experience after r443016:
Making all in kdc
cd . && perl ../cf/make-proto.pl -q -P comment -o kdc-protos.h default_config.c set_dbinfo.c digest.c fast.c kdc_locl.h kerberos5.c krb5tgs.c pkinit.c pkinit-ec.c log.c misc.c kx509.c process.c windc.c rx.h || rm -f kdc-protos.h
Can't locate JSON.pm in @INC (you may need to install the JSON module) (@INC contains: /usr/local/lib/perl5/site_perl/mach/5.24 /usr/local/lib/perl5/site_perl /usr/local/lib/perl5/5.24/mach /usr/local/lib/perl5/5.24 .) at ../cf/make-proto.pl line 7.
BEGIN failed--compilation aborted at ../cf/make-proto.pl line 7.
cd . && perl ../cf/make-proto.pl -q -P comment -p kdc-private.h default_config.c set_dbinfo.c digest.c fast.c kdc_locl.h kerberos5.c krb5tgs.c pkinit.c pkinit-ec.c log.c misc.c kx509.c process.c windc.c rx.h || rm -f kdc-private.h
Can't locate JSON.pm in @INC (you may need to install the JSON module) (@INC contains: /usr/local/lib/perl5/site_perl/mach/5.24 /usr/local/lib/perl5/site_perl /usr/local/lib/perl5/5.24/mach /usr/local/lib/perl5/5.24 .) at ../cf/make-proto.pl line 7.
BEGIN failed--compilation aborted at ../cf/make-proto.pl line 7.
/bin/sh ../libtool --tag=CC --mode=compile cc -DHAVE_CONFIG_H -I. -I. -I../include -I../include -I../lib/roken -I../lib/roken -I/usr/local/include -I/usr/local/include -I./../lib/krb5 -I/usr/local/include -isystem /usr/local/include -D_LARGE_FILES= -Wall -Wextra -Wno-sign-compare -Wno-unused-parameter -Wmissing-prototypes -Wpointer-arith -Wbad-function-cast -Wmissing-declarations -Wnested-externs -Wshadow -DINET6 -O2 -pipe -fstack-protector -isystem /usr/local/include -fno-strict-aliasing -MT default_config.lo -MD -MP -MF .deps/default_config.Tpo -c -o default_config.lo default_config.c
libtool: compile: cc -DHAVE_CONFIG_H -I. -I. -I../include -I../include -I../lib/roken -I../lib/roken -I/usr/local/include -I/usr/local/include -I./../lib/krb5 -I/usr/local/include -isystem /usr/local/include -D_LARGE_FILES= -Wall -Wextra -Wno-sign-compare -Wno-unused-parameter -Wmissing-prototypes -Wpointer-arith -Wbad-function-cast -Wmissing-declarations -Wnested-externs -Wshadow -DINET6 -O2 -pipe -fstack-protector -isystem /usr/local/include -fno-strict-aliasing -MT default_config.lo -MD -MP -MF .deps/default_config.Tpo -c default_config.c -fPIC -DPIC -o .libs/default_config.o
In file included from default_config.c:36:
./kdc_locl.h:48:10: fatal error: 'kdc-private.h' file not found
#include <kdc-private.h>
^~~~~~~~~~~~~~~
1 error generated.