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-traitlets_5.0.5.bb

@@ -9,7 +9,7 @@ PYPI_PACKAGE = "traitlets"
 SRC_URI[md5sum] = "2ffe54aee5d0d87890127dd28ce3f6c4"
 SRC_URI[sha256sum] = "178f4ce988f69189f7e523337a3e11d91c786ded9360174a3d9ca83e79bc5396"
 
-RDEPENDS_${PN} = "\
+RDEPENDS:${PN} = "\
     ${PYTHON_PN}-ipython-genutils \
     ${PYTHON_PN}-decorator \
 "