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J. Nick Koston
b3a57d1395
Fixes esphome/esphome#11550 When clone_or_update is called with a ref or submodules, the initial clone uses --depth=1 but the subsequent git fetch and git submodule update commands run deep, pulling the full history on every refresh. This causes excess network traffic and disk usage for external_components, packages, and dashboard imports. Add --depth=1 to all four call sites (initial fetch, initial submodule init, refresh fetch, refresh submodule update). Shallow fetches still advance the local clone to the current remote tip when it moves, so the refresh path keeps working as before.
