Add parens to satisfy Elixir 1.17

[bencoppock]

This eliminates the following warning otherwise generated by Elixir 1.17 and beyond:

using map.field notation (without parentheses) to invoke function TestSchema.Date.strict() is deprecated, you must add parentheses instead: remote.function()

[amclain]

Why am I looking at JavaScript in an Elixir file? 😢

Thanks Ben! This should make it into a release soon with #13.

[abelino]

@bencoppock Thanks for your contribution. This deprecation warning fix was released in speck 1.2.0.