By Stephanie Kelly NEW YORK (Reuters) -U.S. gasoline prices at the pump edged lower over the weekend after reaching all-time highs last week following Russia’s invasion of Ukraine. Retail gasoline prices fell for the second straight day on Sunday to $4.325 per gallon, below a record of $4.331 hit on Friday, according to American Automobile Association data. Russia’s invasion of Ukraine in late February has roiled energy markets worldwide since, bringing more expensive fuel costs to motorists who have also been hit by higher inflation. Oil markets have been volatile recently. Global benchmark B…