Fixing lintian error: E: flashrom source: invalid-field-for-derivative

uploaders: Jeremiah C. Foster <jeremiah.foster@puri.sm> (field must be
empty)

debian/control

@@ -2,7 +2,7 @@ Source: flashrom
 Section: electronics
 Priority: optional
 Maintainer: PureOS Maintainers <pureos-project@lists.puri.sm>
-Uploaders: Jeremiah C. Foster <jeremiah.foster@puri.sm>
+Uploaders:
 XSBC-Original-Maintainer: Jonas Smedegaard <jonas.smedegaard@puri.sm>
 Build-Depends: debhelper (>= 11), pkg-config, libpci-dev, libusb-1.0-0-dev [!hurd-i386], libftdi1-dev [!hurd-i386], meson
 Standards-Version: 4.5.0