[pkg-go] restic is marked for autoremoval from testing

[Debian testing autoremoval watch]

restic 0.9.6+ds-2 is marked for autoremoval from testing on 2020-05-05

It (build-)depends on packages with these RC bugs:
954540: golang-github-azure-go-autorest: FTBFS: dh_auto_test: error: cd obj-x86_64-linux-gnu && go test -vet=off -v -p 4 [...] returned exit code 1
954606: golang-github-minio-minio-go: FTBFS: dh_auto_test: error: cd obj-x86_64-linux-gnu && go test -vet=off -v -p 4 -short github.com/minio/minio-go github.com/minio/minio-go/pkg/credentials github.com/minio/minio-go/pkg/encrypt github.com/minio/minio-go/pkg/policy github.com/minio/minio-go/pkg/s3signer github.com/minio/minio-go/pkg/s3utils github.com/minio/minio-go/pkg/set returned exit code 1