Update sky130_fd_pr

sky130/sky130.json

diff --git a/sky130/sky130.json b/sky130/sky130.json
index 264e230..e67d245 100644
--- a/sky130/sky130.json
+++ b/sky130/sky130.json
@@ -96,7 +96,7 @@
     "reference": {
         "open_pdks": "8c312fd9be7c9a9a2821c0821d1421c00e13d139",
         "magic": "b7942cffe6de3bac78bef3ee745097ecd72c689f",
-        "sky130_fd_pr": "afc63d29f811b65b9888b2133fd3348eefc92046",
+        "sky130_fd_pr": "514d4dc1d67632015e1de2cb7de60e21653cd94c",
         "sky130_fd_io": "d3b662d017ce4fb5d4e3c3922ac81f744111e010",
         "sky130_fd_sc_hs": "9a855e97aa75f8a14be7eadc365c28d50045d5fc",
         "sky130_fd_sc_ms": "26d0047c0e2dbe28fe4950f171411f6e8b3d0564",