This should resolve a segfault we are seeing with `cuda-python=11.7.0` (rapidsai/cudf#11941).

Authors:
   - Ashwin Srinath (https://github.com/shwina)
   - Bradley Dice (https://github.com/bdice)
   - Ray Douglass (https://github.com/raydouglass)

Approvers:
   - Bradley Dice (https://github.com/bdice)
   - Brad Rees (https://github.com/BradReesWork)
   - Ray Douglass (https://github.com/raydouglass)
   - GALI PREM SAGAR (https://github.com/galipremsagar)

Moves the PyG extensions to their own package.  Includes conda package configurations.

- [x] File structure
- [x] Enable CI
- [x] Example integration test
- [x] Double-check PyG dependency, conda channel

Due to PyG 2.2 not being released on conda yet, it is not a hard dependency.  This will be resolved when PyG 2.2 is released with conda packages.  Going forward, we should encourage PyG to make their nightly builds available on conda so this issue does not occur again.

Resolves rapidsai/graph_dl#48
Resolves rapidsai/graph_dl#93

Authors:
  - Alex Barghi (https://github.com/alexbarghi-nv)
  - Erik Welch (https://github.com/eriknw)

Approvers:
  - Vibhu Jawa (https://github.com/VibhuJawa)
  - Rick Ratzel (https://github.com/rlratzel)
  - Brad Rees (https://github.com/BradReesWork)
  - Mark Sadang (https://github.com/msadang)

URL: rapidsai#2905

This PR fixes  cluster startup script

Authors:
  - Vibhu Jawa (https://github.com/VibhuJawa)

Approvers:
  - Alex Barghi (https://github.com/alexbarghi-nv)
  - Brad Rees (https://github.com/BradReesWork)
  - Rick Ratzel (https://github.com/rlratzel)

URL: rapidsai#2977

An illegal memory access occurs when running the MG similarity algos at certain scale. This is caused by vertex pairs not being shuffled appropriately.
This PR:
1. Shuffle the vertex pairs based on the edge partitioning
2. Update the the vertex pairs column names which are not necessarily edgelists
3. Update the docstrings, tests and notebooks accordingly

closes rapidsai#3001

Authors:
  - Joseph Nke (https://github.com/jnke2016)
  - Chuck Hastings (https://github.com/ChuckHastings)

Approvers:
  - Rick Ratzel (https://github.com/rlratzel)
  - Chuck Hastings (https://github.com/ChuckHastings)

URL: rapidsai#3002

…ct experimental namespace name (rapidsai#3007)

closes rapidsai#3006 

* Updated experimental warning wrapper to also pass-through __doc__ attr
* Updated PropertyGraph doc .rst file to use the proper experimental namespace.

Authors:
  - Rick Ratzel (https://github.com/rlratzel)

Approvers:
  - Brad Rees (https://github.com/BradReesWork)

URL: rapidsai#3007

This PR adds wheel building to cugraph.

Also resolves rapidsai#3004.

Authors:
  - Vyas Ramasubramani (https://github.com/vyasr)
  - Sevag H (https://github.com/sevagh)
  - Paul Taylor (https://github.com/trxcllnt)

Approvers:
  - Joseph (https://github.com/jolorunyomi)
  - Brad Rees (https://github.com/BradReesWork)
  - Rick Ratzel (https://github.com/rlratzel)

URL: rapidsai#2964

Branch 22.12 merge 22.10

We need to install dask-cuda from source during wheel builds for cugraph CI to pass because dask evolves too fast to pin. We also don't want to build wheels on every PR, so we'll need that disabled. I'll make that change once I confirm that wheel builds pass tests here.

This PR also fixes an unrelated issue causing doctests to fail. I'm guessing that because the docstring is in tests/mg it isn't being discovered during conda gpuCI because we exclude that directory from the pytest command in ci/test.sh.

Authors:
  - Vyas Ramasubramani (https://github.com/vyasr)

Approvers:
  - Brad Rees (https://github.com/BradReesWork)
  - Sevag H (https://github.com/sevagh)

URL: rapidsai#3009

This PR pins `dask` and `distributed` to `2022.11.1` for `22.12` release.
xref: rapidsai/cudf#12165

Authors:
  - GALI PREM SAGAR (https://github.com/galipremsagar)

Approvers:
  - Ray Douglass (https://github.com/raydouglass)
  - Brad Rees (https://github.com/BradReesWork)

URL: rapidsai#2940