Switch to GitHub Actions for Steam Link builds

.github/workflows/build-steamlink.yml

@@ -0,0 +1,39 @@
+name: Build Steam Link
+
+on:
+  push:
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+          fetch-depth: 1
+
+      - name: Checkout Steam Link SDK
+        uses: actions/checkout@v4
+        with:
+          repository: ValveSoftware/steamlink-sdk
+          path: steamlink-sdk
+          fetch-depth: 1
+
+      - name: Set CI version
+        run: |
+          CI_VERSION=`echo $GITHUB_SHA | cut -c1-6`
+          echo "CI_VERSION=$CI_VERSION" >> $GITHUB_ENV
+
+      - name: Build binaries
+        run: STEAMLINK_SDK_PATH=$PWD/steamlink-sdk scripts/build-steamlink-app.sh
+
+      - name: Upload Binaries
+        uses: actions/upload-artifact@v4
+        with:
+          name: Moonlight-SteamLink-${{ env.CI_VERSION }}
+          path: build/deploy-release/*
+          if-no-files-found: error