Prepare release for Kubernetes v1.22

Changes are here : v2.8.0...v2.9.0

6a9ef3f fix typo
59f7cb5 fix byte array display in InfoS and ErrorS
cf22f1e Call logr with call depth
e95c7e3 make SetLogger thread-safe
2728fe1 check usage of format specifier in structured log func
a18bc97 Fix by pr suggestions
4e4135c Add check for InfoS & ErrorS parameters