Source code updated to support Jax 0.3.14

[shailesh1729]

Recent versions of JAX have dropped support for index_add and index_update functions in jax.ops module. The older code was still using them. I have updated the source code for cr-sparse and cr-nimble to work with the recent Jax release 0.3.14. The code from the master branch is now working fine. I will make a new official release in some time.