CI: add riscv64 job

Author: Bodigrim

.github/workflows/emulated.yml

@@ -18,10 +18,10 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        arch: ['s390x', 'ppc64le']
+        arch: ['s390x', 'ppc64le', 'riscv64']
     steps:
     - uses: actions/checkout@v3
-    - uses: uraimo/run-on-arch-action@v2.7.2
+    - uses: uraimo/run-on-arch-action@v2.8.1
       timeout-minutes: 60
       with:
         arch: ${{ matrix.arch }}