Exclude .cache from make pull

[lnlyssg]

Now that HA is including brand icons make pull downloads a bunch of unnecessary icons e.g.

.cache/brands/integrations/recorder/
.cache/brands/integrations/recorder/dark_icon.png
.cache/brands/integrations/recorder/icon.png
.cache/brands/integrations/repairs/
.cache/brands/integrations/repairs/dark_icon.png
.cache/brands/integrations/repairs/icon.png
.cache/brands/integrations/ring/
.cache/brands/integrations/ring/dark_icon.png
.cache/brands/integrations/ring/icon.png
.cache/brands/integrations/scene/
.cache/brands/integrations/scene/dark_icon.png
.cache/brands/integrations/schedule/
.cache/brands/integrations/schedule/icon.png
.cache/brands/integrations/script/
.cache/brands/integrations/script/dark_icon.png
.cache/brands/integrations/script/icon.png
.cache/brands/integrations/scrypted/
.cache/brands/integrations/scrypted/dark_icon.png
.cache/brands/integrations/scrypted/icon.png

I'm not sure if the whole .cache dir needs to be ignored or just .cache/brands