Don't upload existing translation when syncing with Crowdin. This way, we let
the existing translations be invalidated when we change the source string (this
was not happening previously since we also upload the (older) translations when
we upload the changed source strings).
When we merge main into a deploy/* branch
(e.g. https://github.com/ente-io/ente/pull/1147), all changes get pulled in not
just the one related to that deployment, and this causes almost all of the path
based workflows to run again unnecessarily. Exclude the various "deploy/**"
branches to stop these unnecessary workflows from being triggered.
Every day is too much noise - we really only need this
- When a string gets changed in the source translation, in which case this
workflow gets triggered automatically anyway.
- Before we do a new release (this doesn't automatically happen, but the
workflow can be triggered manually if needed).
For now, reduce the frequency of the daily job to pull new translations from
Crowdin: now it'll only happen on Tuesdays and Fridays (just an arbitrary
choice).
