python3-oslash: add missing run-time dependencies

Add missing RDEPENDS for this package.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-oslash_0.6.3.bb

@@ -14,8 +14,9 @@ PYPI_PACKAGE = "OSlash"
 
 inherit pypi setuptools3
 
-RDEPENDS:${PN} += "\
-    python3-core \
+RDEPENDS:${PN} += " \
+    python3-json \
+    python3-typing-extensions \
 "
 
 BBCLASSEXTEND = "native nativesdk"