[cd] Bump CIRCT from firtool-1.51.0 to firtool-1.52.0 (#3506)

This is an automated commit generated by Chisel's CD flow.

Co-authored-by: chiselbot <[email protected]>

Author: chiselbot

etc/circt.json

@@ -1,3 +1,3 @@
 {
-  "version": "firtool-1.51.0"
+  "version": "firtool-1.52.0"
 }