Freshen-up cirq dependencies (quantumlib#6616)

- allow latest scipy because quimb>=1.18 works with scipy-1.13
  (context in quantumlib#6543)
- allow latest rstcheck
- fix dependency specification for tensorflow-docs so it works with
  `uv pip compile`
- Enable the current latest versions of notebook, ipykernel, papermill
  which are only used for notebook tests
- Add temporary specifications for notebook-related transitive dependencies
  to help pip dependency resolver (should be redundant after quantumlib#6281) 

Partially fixes quantumlib#6464

Author: pavoljuhas

requirements.txt

@@ -7,7 +7,7 @@ networkx>=2.4
 numpy~=1.22
 pandas
 sortedcontainers~=2.0
-scipy<1.13.0
+scipy~=1.0
 sympy
 typing_extensions>=4.2
 tqdm