Invalid example in applicationinsights

https://github.com/Azure/azure-rest-api-specs/blob/main/specification/applicationinsights/resource-manager/Microsoft.Insights/stable/2021-03-08/examples/MyWorkbookAdd.json#L18-L21

Resource tag should be dict, not array.

There is several similar issue in applicationinsights.

Inspect specification/applicationinsights/resource-manager/Microsoft.Insights/stable/2021-03-08/examples/MyWorkbookAdd.json around lines 18-21, then search nearby applicationinsights examples for the other similar cases. Confirm that each resource tag value is represented as a dictionary rather than an array, and validate the corrected examples with the repository's applicable specification checks.

Written by the indexing model from the issue text.