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espressif: switch to full root certificate bundle #10354

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@dhalbert dhalbert commented May 16, 2025

This is an experiment to see how big the builds are when we use the full Mozilla root certificate bundle, which can be generated by the ESP-IDF build process.

Tested this locally with the usual Guide wifi test script on Feather ESP32-S3 4/2 (whose ota_0 partition was just doubled in size). Its https fetches to various places are working.

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The builds that are failing have OTA partitions, so after #10346 I think they might all fit.

The size difference on the Feather S3 build is about 50kB larger for the full bundle. This is not terrible and maybe we should just use the full cert bundle, instead of trying to tune which certificates are most common. adafruit/nina-fw#70 (in progress), which revamps NINA-FW extensively, also uses the full bundle and it fits.

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