bug: sample store identifiers that look like exponential notation do not work correctly with --set

[AlessandroPomponio]

Issue Description

Sample store identifiers are made up of 6 alphanumeric characters. In the eventuality that a sample store identifier is generated looking like 310e50, using it via the --set flag in ado create such as:

ado create space -f examples/ml-multi-cloud/ml_multicloud_space.yaml --set entitySourceIdentifier=310e50

Will raise the following exception:

ERROR:  The database does not contain a resource with id 3.1e+52 and kind entitysource.
HINT:   Your active context is local - are you sure it's the correct one?
        You can change it with ado context

JSON parsing converts what looks like a string in exponential notation to a number, changing to something that is not found in the DB.

Possible solution

• Change the function that generates the random identifier so that this cannot happen anymore