submodule(ready-to-run): bump ready-to-run (#3931)

* NEMU branch: master
* NEMU commit: 3f9894d3421b01aed151f94bf3d06f8559169f06
* NEMU configs:
    * riscv64-xs-ref_defconfig
    * riscv64-dual-xs-ref_defconfig

Including:
* fix(vldff): oldvd is reserved for register granularity only when an
exception is triggered
* fix(device): SDL is include only when using SDL-related devices
* fix(cpu-exec): record last insts when PERF_OPT disabled
---

* spike commit: 8db172d59681199e332098861691b6082df0c9b2
* spike config: CPU=XIANGSHAN

Including:
* feat: turn on Zimop and Zcmop extensions.
* feat(Zcb): enable Zcb extension.