Don't include gitignore in release files

.github/workflows/build.yml

@@ -101,16 +101,18 @@ jobs:
           mkdir -p northstar/R2Northstar/mods
           mkdir -p northstar/R2Northstar/plugins
           mkdir -p northstar/bin/x64_retail
+
           mv -v northstar-launcher/DiscordRPC.dll northstar/R2Northstar/plugins
           mv -v northstar-launcher/discord_game_sdk.dll northstar
           mv -v northstar-launcher/wsock32.dll northstar/bin/x64_retail
           unzip NorthstarStubs.zip -d northstar/bin/x64_dedi
+
           mv -v northstar-launcher/* northstar
           rsync -avr --exclude="Northstar.Coop" --exclude=".git*" northstar-mods/. northstar/R2Northstar/mods
-      - name: Cleanup
+      - name: Cleanup root Northstar repository files
         run: |
           rm -rf northstar-launcher
-          cd northstar && rm -rf .git .github *.md LICENSE
+          cd northstar && rm -rf .git .github .gitignore *.md LICENSE thunderstore .ci.env.example
       - name: Upload
         uses: actions/upload-artifact@v2
         with: