Add upload binaries to workflow

.gitea/workflows/build.yaml

@@ -62,3 +62,13 @@ jobs:
 
       - name: Build release binaries
         run: cargo build --locked --release --bins
+
+      - name: Upload binaries
+        uses: actions/upload-artifact@v4
+        with:
+          name: jmb-bar-linux-x86_64
+          path: |
+            target/release/jmbbar
+            target/release/jmbctl
+          if-no-files-found: error
+          retention-days: 14