Update license header files #1004

Which area/kind this issue is related to?

/area releng

Issue Description

Update the year to 2023 in the license header files

To clarify, we are just looking to update the header files only which ensures any new files get created with the license headers for the current year.

The rules for updating existing files are:

• If there are no changes, then no need to update

• If file has changes, then we need to update in the format [original year]-[year in which the file was updated]

Existing files are updated as we make changes via PRs so this is something we should be catching in our code reviews

• devfile-web Update license headers to 2023 devfile-web#68
• registry-support Update license header file to use the year 2023 registry-support#155
• registry-operator Updates for operator sdk v1.28 registry-operator#45
• library pull in validation update library#170