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-async-timeout_3.0.1.bb

@@ -14,6 +14,6 @@ SRC_URI[sha256sum] = "0c3c816a028d47f659d6ff5c745cb2acf1f966da1fe5c19c77a70282b2
 PYPI_PACKAGE = "async-timeout"
 inherit pypi setuptools3
 
-RDEPENDS_${PN} = "\
+RDEPENDS:${PN} = "\
     ${PYTHON_PN}-asyncio \
 "