net-libs/nodejs: keyword 16.14.1 for ~riscv

increasing timeout value would make 'test-heap-prof.js' pass the test,
so we think it's good to go, instead of blocking the keyword procedure forever

finally, thanks 'ArchFeh' for testing

Closes: https://bugs.gentoo.org/782913
Signed-off-by: Yixun Lan <dlan@gentoo.org>

net-libs/nodejs/nodejs-16.14.1.ebuild

@@ -19,7 +19,7 @@ if [[ ${PV} == *9999 ]]; then
 else
 	SRC_URI="https://nodejs.org/dist/v${PV}/node-v${PV}.tar.xz"
 	SLOT="0/$(ver_cut 1)"
-	KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86 ~amd64-linux ~x64-macos"
+	KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86 ~amd64-linux ~x64-macos"
 	S="${WORKDIR}/node-v${PV}"
 fi