ci: upload artifacts on builds

Author: ankddev

.github/workflows/build.yml

@@ -26,3 +26,9 @@ jobs:
       run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
     - name: Build
       run: cargo build --verbose
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v4
+      with:
+        name: my-artifact
+        path: |
+          target/debug/envfetch*