Adds nx-cugraph benchmarks for 23.12 algos (SSSP, pagerank, hits, k…

…atz_centrality, degree_centrality, eigenvector_centrality) (#4065)

closes rapidsai/graph_dl#404

* Adds benchmarks for algos added in the 23.12 release
  * SSSP
  * pagerank
  * hits
  * katz_centrality
  * degree_centrality
  * eigenvector_centrality
* Refactors fixtures for easier usage and mainentance
* uses `benchmark.pedantic` instead of `benchmark` to provide complete control over how to benchmark the algos, since `benchmark` will result in no fewer than 3 runs (calibrate timer, timed run, run to generate func return value) which can be too time consuming for slower runs.
* Removes code to create `Dataset` objects for larger datasets and replaces with the equivalent objects that are now part of `cugraph.datasets`

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

Approvers:
  - Erik Welch (https://github.com/eriknw)

URL: #4065