Convert to new override syntax

This is the result of automated script (0.9.1) conversion:

oe-core/scripts/contrib/convert-overrides.py .

converting the metadata to use ":" as the override character instead of "_".

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-python/recipes-devtools/python/python3-pytest-helpers-namespace_2021.4.29.bb

@@ -13,6 +13,6 @@ DEPENDS += "\
     ${PYTHON_PN}-pip-native \
 "
 
-RDEPENDS_${PN} += " \
+RDEPENDS:${PN} += " \
     ${PYTHON_PN}-pytest \
 "