chore: remove needs/* labels as they are replaced by board status (#98)

<!-- markdownlint-disable MD041 -->
#### What this PR does / why we need it

Cleanup the "needs/*" label

#### Which issue(s) this PR is related to
<!--
Usage: `Related to #<issue number>`, or `Related to (paste link of
issue)`.
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open-component-model/ocm-project#1216

Signed-off-by: Andreas Thaler <andreas.thaler01@sap.com>

Author: a-thaler

.github/workflows/validation.yml

@@ -107,15 +107,6 @@ repository:
 # The app will apply the following settings to it
 labels:
 ## The different areas of the project
-- name: needs/validation
-  color: f980d1
-  description: Validate the issue and assign a priority
-- name: needs/tech-advice
-  color: f980d1
-  description: Outline technical tasks that need to be done
-- name: needs/refinement
-  color: f980d1
-  description: Discuss with the team and gain a shared understanding
 - name: area/cicd
   color: 0052cc
   description: Continuous Integration and Continuous Deployment related