Fix typo in 7a7ca84bd2 (#461) (#465)

For some reason there's a stray empty `release` folder inside the release zip that shouldn't be there.

.github/workflows/build.yml

@@ -66,7 +66,7 @@ jobs:
           path: northstar-launcher
       - name: Download DiscordRPC plugin
         run:
-          wget "https://github.com/R2Northstar/NorthstarDiscordRPC/releases/download/v2/northstar-discord-rpc.zip"
+          wget "https://github.com/R2Northstar/NorthstarDiscordRPC/releases/download/v4/northstar-discord-rpc.zip"
       - name: Download compiled stubs
         run:
           wget "https://github.com/R2Northstar/NorthstarStubs/releases/download/v1/NorthstarStubs.zip"
@@ -95,13 +95,13 @@ jobs:
       - name: Make folder structure
         run: |
           mv -v northstar/release/* northstar/.
+          rm -d northstar/release
           mkdir -p northstar/R2Northstar/mods
           mkdir -p northstar/R2Northstar/plugins
           mkdir -p northstar/bin/x64_retail
 
           unzip northstar-discord-rpc.zip
           mv -v DiscordRPC.dll northstar/R2Northstar/plugins
-          mv -v discord_game_sdk.dll northstar
 
           mv -v northstar-launcher/wsock32.dll northstar/bin/x64_retail
           unzip NorthstarStubs.zip -d northstar/bin/x64_dedi
@@ -133,6 +133,9 @@ jobs:
           cd northstar/
           zip --recurse-paths --quiet Northstar.release.${{ env.NORTHSTAR_VERSION }}.zip .
           mv Northstar.release.${{ env.NORTHSTAR_VERSION }}.zip ../
+      - name: Compute SHA-512 checksum
+        run: |
+          sha512sum Northstar.release.${{ env.NORTHSTAR_VERSION }}.zip
       - name: Upload zip to release draft
         uses: softprops/action-gh-release@v1
         if: startsWith(github.ref, 'refs/tags/v') && !contains(env.NORTHSTAR_VERSION, '-rc')