task/upload: Allow asset IPFS metadata player template on creation

[victorges]

We had a legacy check on the export task to only allow assets with playback URLs to
use player NFT metadata. This was because our very first assets didn't even have an HLS
playlist and just provided MP4 URLs.

For new assets creation, the only other place where saveNFTMetadata is called, this is not
necessary tho, as we will always create an HLS playback URL for the asset, or at least have it
playable on the player.

This fixes API-36

[linear]

API-36 error with nft metadata when set to 'player'

There is an error when uploading to IPFS on create when passing in the player template

[codecov]

Codecov Report

Merging #170 (89919db) into main (66147fb) will not change coverage.
The diff coverage is 0.00000%.

❗ Current head 89919db differs from pull request most recent head e38ad08. Consider uploading reports for the commit e38ad08 to get more accurate results

@@              Coverage Diff              @@
##                main        #170   +/-   ##
=============================================
  Coverage   10.86957%   10.86957%           
=============================================
  Files             14          14           
  Lines           2162        2162           
=============================================
  Hits             235         235           
  Misses          1910        1910           
  Partials          17          17           

Impacted Files	Coverage Δ
task/export.go	0.00000% <0.00000%> (ø)

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Impacted Files	Coverage Δ
task/export.go	0.00000% <0.00000%> (ø)