Bump debian from buster-20201117 to buster-20211220 in /docker/safety-rules#278

dependabot[bot] wants to merge 1 commit into

masterrustielin/libra:masterfrom

dependabot/docker/docker/safety-rules/debian-buster-20211220rustielin/libra:dependabot/docker/docker/safety-rules/debian-buster-20211220Copy head branch name to clipboard