correctly label pulpcore-(api|content) binaries

since pulpcore 3.33 there are new binaries to start pulpcore services,
but those binaries were not properly labeles with pulpcore_server_t like
their old counterpart gunicorn
without that label, the services run as unconfined_service_t, which
results in errors like httpd not being able to connect to them

while at it, also properly label the pulpcore-worker binary in /usr/bin

pulpcore.fc

@@ -7,6 +7,9 @@
 /etc/pulp/certs/token_public_key.pem		gen_context(system_u:object_r:pulpcore_etc_t,s0)
 /etc/pulp/settings.py			gen_context(system_u:object_r:pulpcore_etc_t,s0)
 
+/usr/bin/pulpcore-(api|content)	--	gen_context(system_u:object_r:pulpcore_server_exec_t,s0)
+/usr/bin/pulpcore-worker	--	gen_context(system_u:object_r:pulpcore_exec_t,s0)
+
 /usr/libexec/pulpcore/.*	--	gen_context(system_u:object_r:pulpcore_exec_t,s0)
 /usr/libexec/pulpcore/gunicorn	--	gen_context(system_u:object_r:pulpcore_server_exec_t,s0)