python3-dbusmock: only recommend python3-pygobject

dbusmock doesn't actually hard-depend on pygobject, some of the templates
use it but it isn't mandatory.

Change the RDEPENDS to RRECOMMENDS, and only recommend if g-i is enabled.

(From OE-Core rev: 943d438e2ebce5e76e03dd60ed78acdf9059a10a)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3-dbusmock_0.29.0.bb

@@ -13,9 +13,10 @@ DEPENDS += "python3-setuptools-scm-native"
 
 RDEPENDS:${PN} += "\
     ${PYTHON_PN}-dbus \
-    ${PYTHON_PN}-pygobject \
     ${PYTHON_PN}-unittest \
     ${PYTHON_PN}-xml \
     "
 
+RRECOMMENDS:${PN} = "${@bb.utils.contains('DISTRO_FEATURES', 'gobject-introspection-data', '${MLPREFIX}${PYTHON_PN}-pygobject', '', d)}"
+
 BBCLASSEXTEND = "native"