hakman: Update Calico to v3.20.0

JobBuild
12088
08-02 05:48
pull-kops-bazel-build 1422072696321085440 1422071526038966272
pull-kops-bazel-test 1422072696392388608 1422071526076715008
pull-kops-e2e-cni-calico 1422072696266559488 1422071526005411840
pull-kops-e2e-kubernetes-aws 1422091453391179776 1422072696207839232 1422071525971857408
pull-kops-verify-bazel 1422072696438525952 1422071526101880832
pull-kops-verify-boilerplate 1422072696644046848 1422071526202544128
pull-kops-verify-cloudformation 1422072698686672896 1422071528467468288
pull-kops-verify-generated 1422072696509829120 1422071526139629568
pull-kops-verify-gofmt 1422072696715350016 1422071526257070080
pull-kops-verify-gomod 1422072696564355072 1422071526177378304
pull-kops-verify-govet 1422072696883122176 1422071526278041600
pull-kops-verify-staticcheck 1422072697017339904 1422071526777163776
pull-kops-verify-terraform 1422072697852006400 1422071527628607488