Automation/dp 17064 allow semantic versioning

[clairesunstudio]

Added impact field in changelog template to control semantic versioning:

#___IMPACT___
# - Major impact when you make incompatible API changes,
# - Minor impact when you add functionality in a backwards compatible manner, and
# - Patch impact when you make backwards compatible bug fixes.
# See https://semver.org/ for more info.

CHANGE TYPE - [see list above]:
  - project: [enter a valid project prefix - see list above]
    component: [enter a valid component name - see direction above]
    description: Describe the change. If you need multiple lines, start the first line with the following "|-" characters. (#PR)
    issue: [add a Jira ticket or issue number, e.g. DP-12345 or 124]
    impact: [enter a valid impact, e.g. Minor]

Test logic:

• check out efb73dd
• change the impact value in changelogs/test.yml

If there's a Major:

If there's a Minor:

If there are only Patches:

[rbayliss]

Nice! This works for me.