faker.image.dataUri() always returns svg-base64 #3346
Description
faker.image.dataUri() should return either of the 'svg-uri', 'svg-base64' types if no type if provided, but actually always returns 'svg-base64'
> faker.image.dataUri()
'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIgYmFzZVByb2ZpbGU9ImZ1bGwiIHdpZHRoPSIzNjI2IiBoZWlnaHQ9IjM3NDUiPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbGw9IiM4ZTk3ZTgiLz48dGV4dCB4PSIxODEzIiB5PSIxODcyLjUiIGZvbnQtc2l6ZT0iMjAiIGFsaWdubWVudC1iYXNlbGluZT0ibWlkZGxlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIiBmaWxsPSJ3aGl0ZSI+MzYyNngzNzQ1PC90ZXh0Pjwvc3ZnPg=='
> faker.image.dataUri()
'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIgYmFzZVByb2ZpbGU9ImZ1bGwiIHdpZHRoPSIxOTI2IiBoZWlnaHQ9IjI2MjgiPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbGw9IiNhNTc3ZDMiLz48dGV4dCB4PSI5NjMiIHk9IjEzMTQiIGZvbnQtc2l6ZT0iMjAiIGFsaWdubWVudC1iYXNlbGluZT0ibWlkZGxlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIiBmaWxsPSJ3aGl0ZSI+MTkyNngyNjI4PC90ZXh0Pjwvc3ZnPg=='
> faker.image.dataUri()
'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIgYmFzZVByb2ZpbGU9ImZ1bGwiIHdpZHRoPSIyMzc4IiBoZWlnaHQ9IjExNDAiPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbGw9IiNlZGMzY2EiLz48dGV4dCB4PSIxMTg5IiB5PSI1NzAiIGZvbnQtc2l6ZT0iMjAiIGFsaWdubWVudC1iYXNlbGluZT0ibWlkZGxlIiB0ZXh0LWFuY2hvcj0ibWlkZGxlIiBmaWxsPSJ3aGl0ZSI+MjM3OHgxMTQwPC90ZXh0Pjwvc3ZnPg=='
> faker.image.dataUri()
'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIgYmFzZVByb2ZpbGU9ImZ1bGwiIHdpZHRoPSI2MjUiIGhlaWdodD0iMjA3NiI+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsbD0iIzBhNzhhYiIvPjx0ZXh0IHg9IjMxMi41IiB5PSIxMDM4IiBmb250LXNpemU9IjIwIiBhbGlnbm1lbnQtYmFzZWxpbmU9Im1pZGRsZSIgdGV4dC1hbmNob3I9Im1pZGRsZSIgZmlsbD0id2hpdGUiPjYyNXgyMDc2PC90ZXh0Pjwvc3ZnPg=='
> faker.image.dataUri()
'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIgYmFzZVByb2ZpbGU9ImZ1bGwiIHdpZHRoPSIxMjMyIiBoZWlnaHQ9IjEzNDAiPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbGw9IiMzNmE2OGMiLz48dGV4dCB4PSI2MTYiIHk9IjY3MCIgZm9udC1zaXplPSIyMCIgYWxpZ25tZW50LWJhc2VsaW5lPSJtaWRkbGUiIHRleHQtYW5jaG9yPSJtaWRkbGUiIGZpbGw9IndoaXRlIj4xMjMyeDEzNDA8L3RleHQ+PC9zdmc+'