* pkg/storage/redis: use SANs cert
Since go1.15, X.509 CommonName is deprecated, switch to a SANs
certificate for test redis TLS.
While at it, add instruction to genearte cert and build test image.
See: https://golang.org/doc/go1.15#commonname
* config: do not test for exact route id
Different go version can genearte different route id, due to the fact
that we are relying on xxhash.
* internal/controlplane: mocking policy name in test
We don't have to test for exact policy name, as it does not make sense
and force us to change test every new go release.
Co-authored-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
