add maturin

Signed-off-by: Austin Liu <[email protected]>

.github/workflows/pythonbuild.yml

@@ -176,6 +176,7 @@ jobs:
       - name: Build and install flyrs
         working-directory: flyrs
         run: |
+          pip install maturin
           maturin develop --release
       - name: Install dependencies
         run: |