v0.8.6

GraphSignals v0.8.6

Diff since v0.8.5

Merged pull requests:

• CompatHelper: bump compat for CUDA to 4, (keep existing compat) (#135) (@github-actions[bot])
• Update: node 12 -> node 16 (#137) (@yuehhua)
• CompatHelper: bump compat for FillArrays to 1, (keep existing compat) (#138) (@github-actions[bot])
• CompatHelper: bump compat for StatsBase to 0.34, (keep existing compat) (#139) (@github-actions[bot])