Resources with Array types have regressed to strings

[damoodamoo]

Related to #2473 .

A property such as address_prefixes should save in Cosmos as a native array type. Instead it's being saved as a string, which is then causing issues in substitutions in pipelines.

[marrobi]

@damoodamoo Take a look at #1846 - a requirement of this will be to have multiple address prefixes for a workspace. Hence address_prefixes should likely be in array.

[damoodamoo]

I'm agreeing - it needs to be an array, yet it's being saved to cosmos as an encoded string - "[\\\"github.com\\\",\\\"www.github.com\\\",\... This was previously saving as a proper JSON array so I need to work out what's changed.