[BigSur Wk1] svg/as-image/img-with-svg-resource* is a flakey image failure

[Amir Mark Jr]

These test are a flakey failure on BigSur Wk1 

svg/as-image/img-with-svg-resource-in-dom-and-drawImage.html
svg/as-image/img-with-svg-resource-in-dom-no-size-and-drawImage.html
svg/as-image/img-with-svg-resource-not-in-dom-and-drawImage.html
svg/as-image/img-with-svg-resource-not-in-dom-no-size-and-drawImage.html


History: 

https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=svg%2Fas-image%2Fimg-with-svg-resource-in-dom-and-drawImage.html&test=svg%2Fas-image%2Fimg-with-svg-resource-in-dom-no-size-and-drawImage.html&test=svg%2Fas-image%2Fimg-with-svg-resource-not-in-dom-and-drawImage.html&test=svg%2Fas-image%2Fimg-with-svg-resource-not-in-dom-no-size-and-drawImage.html

Image Diff:

https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r273090%20(323)/svg/as-image/img-with-svg-resource-in-dom-and-drawImage-diff.png
https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r273090%20(323)/svg/as-image/img-with-svg-resource-in-dom-no-size-and-drawImage-diff.png
https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r273090%20(323)/svg/as-image/img-with-svg-resource-not-in-dom-and-drawImage-diff.png
https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r273090%20(323)/svg/as-image/img-with-svg-resource-not-in-dom-no-size-and-drawImage-diff.png

[Radar WebKit Bug Importer]

<rdar://problem/74494509>

[Ryosuke Niwa]

https://build.webkit.org/results/Apple-BigSur-Release-WK1-Tests/r273090%20(323)/svg/as-image/img-with-svg-resource-in-dom-and-drawImage-diffs.html

Huh, the actual image is just grey??