Bump tensorflow from 2.4.1 to 2.6.4 in /color_calibration#18

dependabot[bot] wants to merge 1 commit intomastersimonvoelcker/astrotools:masterfrom

dependabot/pip/color_calibration/tensorflow-2.6.4simonvoelcker/astrotools:dependabot/pip/color_calibration/tensorflow-2.6.4Copy head branch name to clipboard