Disable validations for assets (DataDog#2699)

Author: iliakur

.github/workflows/validate.yml

@@ -19,7 +19,6 @@ jobs:
       # Validations
       ci: true
       config: true
-      dashboards: true
       imports: true
       integration-style: true
       jmx-metrics: true
@@ -28,7 +27,5 @@ jobs:
       models: true
       package: true
       readmes: true
-      saved-views: true
-      service-checks: true
       codeowners: true
     secrets: inherit