[tools] tester: Normalize JSON and YAML reports

[Chris Johns]

> On 29 Jun 2022, at 4:42 pm, Sebastian Huber <sebastian.huber at embedded-brains.de> wrote:
> 
> On 29/06/2022 08:40, Sebastian Huber wrote:
>> Report the same data in JSON and YAML reports.  Do not report redundant
>> information.
>> Update 4671.
> 
> This patch changes the JSON reports. Are there already consumers for the JSON reports so that we have to be backward compatible?

Could compatibility be added back in if this proves to be an issue?

I am wondering if that could be considered if comparability becomes an issue. 

Chris