Fix workspace manifest to use E2021 resolver. (#584) #642

Job	Run time
packages (centos:7, amd64)	8m 23s
packages (debian:10-slim, amd64)	8m 4s
packages (debian:10-slim, arm32v7)	7m 17s
packages (debian:10-slim, aarch64)	7m 18s
packages (debian:11-slim, amd64)	7m 53s
packages (debian:11-slim, arm32v7)	8m 10s
packages (debian:11-slim, aarch64)	8m 20s
packages (redhat/ubi8:latest, amd64)	8m 26s
packages (redhat/ubi9:latest, amd64)	7m 50s
packages (ubuntu:20.04, amd64)	8m 14s
packages (ubuntu:20.04, arm32v7)	7m 46s
packages (ubuntu:20.04, aarch64)	8m 6s
packages (ubuntu:22.04, amd64)	8m 6s
packages (ubuntu:22.04, arm32v7)	7m 35s
packages (ubuntu:22.04, aarch64)	6m 42s
packages (ubuntu:20.04, amd64, mariner:1)	13m 58s
packages (ubuntu:20.04, amd64, mariner:2)	15m 22s
	2h 27m 30s

Provide feedback