capabilities in samconfig.toml does not support list

[benkehoe]

In samconfig.toml, parameter_overrides is able to be a list of strings, which helps format the file better (though see #2253 for a request that this be improved).

I expected that I could do the same with capabilities when I have multiple capabilities. For example:

version = 0.1
[default]
[default.deploy]
[default.deploy.parameters]
capabilities = [
  "CAPABILITY_IAM",
  "CAPABILITY_NAMED_IAM"
]
parameter_overrides = [
  "Foo=Bar"
]

However, this gives me the error AttributeError: 'Array' object has no attribute 'split'.

It appears that this function should handle conversion to tuple for the type tomlkit.items.Array

aws-sam-cli/samcli/commands/_utils/options.py

Line 276 in 876047a

def _space_separated_list_func_type(value):

[aahung]

v1.16.0 is released, please reopen if the issue still persists