CI: add remote-reader

.github/build-remote-reader.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# CI script
+
+set -ex -o xtrace
+
+pushd remote-reader
+
+./gradlew build
+
+popd

.github/workflows/ci.yml

@@ -80,3 +80,14 @@ jobs:
         name: pcsc-relay-mingw-64
         path:
           pcsc-relay/src/pcsc-relay.exe
+
+  remote-reader-ubuntu:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2
+    - run: .github/build-remote-reader.sh
+    - uses: actions/upload-artifact@v2
+      with:
+        name: remote-reader
+        path:
+          remote-reader/app/build/outputs/apk/*/*.apk