By John Irish SCHLOSS ELMAU, Germany (Reuters) -The international community should explore all options to alleviate a Russian squeeze of energy supplies that has spiked prices, including talks with producing nations like Iran and Venezuela, a French presidency official said on Monday. Venezuela has been under U.S. oil sanctions since 2019, and could reroute crude if those restrictions were lifted. Indirect talks between Iran and the United States to revive a nuclear deal that could see sanctions on Tehran lifted and its oil exports resume have been on hold since March, but are due to resume in…