python3-tomlkit: switch to pytest --automake

* Also replace ${PYTHON_PN} with python3

Signed-off-by: Tim Orling <tim.orling@konsulko.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-tomlkit_0.12.3.bb

@@ -18,9 +18,10 @@ RDEPENDS:${PN} += " \
 "
 
 RDEPENDS:${PN}-ptest += " \
-        ${PYTHON_PN}-poetry-core \
-        ${PYTHON_PN}-pytest \
-        ${PYTHON_PN}-pyyaml \
+    python3-poetry-core \
+    python3-pytest \
+    python3-pyyaml \
+    python3-unittest-automake-output \
 "
 
 do_install_ptest() {