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-google-api-core_1.30.0.bb

@@ -8,14 +8,14 @@ inherit pypi setuptools3
 
 SRC_URI[sha256sum] = "0724d354d394b3d763bc10dfee05807813c5210f0bd9b8e2ddf6b6925603411c"
 
-RDEPENDS_${PN} += "\
+RDEPENDS:${PN} += "\
     ${PYTHON_PN}-asyncio \
     ${PYTHON_PN}-datetime \
     ${PYTHON_PN}-logging \
     ${PYTHON_PN}-math \
 "
 
-RDEPENDS_${PN} += "\
+RDEPENDS:${PN} += "\
     ${PYTHON_PN}-googleapis-common-protos \
     ${PYTHON_PN}-google-auth \
     ${PYTHON_PN}-grpcio \