Add verify-copyright pre-commit hook (#1423)

Adds a pre-commit hook to ensure files have an up-to-date copyright notice.

Authors:
  - Gil Forsyth (https://github.com/gforsyth)

Approvers:
  - Richard (Rick) Zamora (https://github.com/rjzamora)
  - James Lamb (https://github.com/jameslamb)

URL: #1423

.pre-commit-config.yaml

@@ -36,6 +36,7 @@ repos:
         rev: v0.4.0
         hooks:
             - id: verify-alpha-spec
+            - id: verify-copyright
       - repo: https://github.com/rapidsai/dependency-file-generator
         rev: v1.16.0
         hooks: