By David Lawder KOENIGSWINTER, Germany (Reuters) – U.S. Treasury Secretary Janet Yellen said the G7 finance leaders on Thursday agreed to provide Ukraine the financial resources it needs in its struggle against Russia’s invasion, and that policymakers are determined to meet their inflation targets. Yellen, speaking to reporters after the first day of a G7 finance ministers and central bank governors’ meeting here, declined to confirm an $18.4 billion figure pledged in the group’s draft communique seen by Reuters. The meeting wraps up on Friday. Yellen said that funding pledges to Ukraine durin…