Release example testplan: update RPM package names

The package names have changed, let's sync that with what's used
in the release example testplan.
Signed-off-by: NCleber Rosa <crosa@redhat.com>

examples/testplans/release.json

@@ -10,10 +10,10 @@
 	 "description": "On your development machine, on a freshen Avocado source to be released, run `$ make spell`. Expected result: Make command should say OK."},
 
 	{"name": "Avocado RPM build",
-	 "description": "On your development machine, build the Avocado RPM packages using: `$ make rpm`. Expected result: SRPM and RPM files at `BUILD/RPM/avocado-x.y.z-r.distro.{src,noarch}.rpm`"},
+	 "description": "On your development machine, build the Avocado RPM packages using: `$ make rpm`. Expected result: SRPM and RPM files at `BUILD/RPM/python-avocado-x.y.z-r.distro.{src,noarch}.rpm`"},
 
 	{"name": "Avocado RPM lint",
-	 "description": "With the built RPMs, check if there are no packaging errors or warnings by running: `$ rpmlint BUILD/RPM/avocado-x.y.z-r.distro.noarch.rpm`.  Expected result: 1 packages and 0 specfiles checked; 0 errors, 0 warnings."},
+	 "description": "With the built RPMs, check if there are no packaging errors or warnings by running: `$ rpmlint BUILD/RPM/python-avocado-x.y.z-r.distro.noarch.rpm`.  Expected result: 1 packages and 0 specfiles checked; 0 errors, 0 warnings."},
 
 	{"name": "Avocado RPM install",
 	 "description": "On a fresh virtual machine, perform the installation of Avocado using the packages built on test 'Avocado RPM build' and the aexpect package from src or avocado repo. Also install and start the qemu-guest-agent."},