chore: Update post-install command to include timing information

pixi.toml

@@ -34,7 +34,7 @@ download-iphone-data = """
     )
 """
 
-post-install = {cmd="python -m pip install -e .", depends_on=["download-model", "download-dpvo-data", "download-iphone-data"], outputs=["cuda_ba.cpython-311-x86_64-linux-gnu.so"]}
+post-install = {cmd="time python -m pip install -e .", depends_on=["download-model", "download-dpvo-data", "download-iphone-data"], outputs=["cuda_ba.cpython-311-x86_64-linux-gnu.so"]}
 rr-viewer = "rerun --memory-limit 50% --drop-at-latency 500ms"
 
 demo = """