v0.2.2

DelaySSAToolkit v0.2.2

Diff since v0.2.1

Merged pull requests:

• CompatHelper: bump compat for ArrayInterface to 6, (keep existing compat) (#22) (@github-actions[bot])
• Add example of cascade and update seir.ipymb (#25) (@X-Y-Zhou)
• Update test_cascade.ipynb (#26) (@X-Y-Zhou)
• switch to JumpProcesses (#28) (@palmtree2013)