vertical-cooperative/easy_my_coop/report/layout.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <template id="emc_external_layout_standard" inherit_id="web.external_layout_standard" primary="True">
        <xpath expr="//div[hasclass('header')]//div//img" position="replace">
            <img t-if="company.logo" t-att-src="image_data_uri(company.logo)" style="min-height: 75px; max-height: 75px" alt="Logo"/>
        </xpath>
    </template>

</odoo>