The symbol-upload task currently downloads the symbols-full.zip artifact
from the build task and then uploads it to the symbol server. These zip
files can be very large (>1GB) so we spend a lot of time doing that.
Now that we're uploading to Tecken instead of Socorro, we can instead
just send the URL of the artifact to Tecken's upload API and ask it to
fetch that directly:
https://tecken.readthedocs.io/en/latest/upload.html#upload-by-download-url
This should make the symbol upload task a fair bit faster.
MozReview-Commit-ID: 8HcbgrWYT1O
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extra : rebase_source : 4e8f7a28c956befb3e291e8be4d41a2b6728e5cd