fix: Fix locale and numRedirects settings

[cmellinas]

On the new version of this plugin, locale and numRedirects settings are not passed correctly to IMA SDK, it will send "undefined" to IMA SDK and can lead to errors increase(if you use numRedirects).

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[cmellinas]

I signed it!

[googlebot]

CLAs look good, thanks!

[shawnbuso]

Thanks for the fix!