Bump golang to 1.23, Alpine to 3.21, golang.org/x/net and github.com/golang-jwt/jwt/v5 to latest to address CVEs#302

merlimat merged 3 commits intomainstreamnative/pulsar-resources-operator:mainfrom

lh-bump-golang-and-fix-CVEsstreamnative/pulsar-resources-operator:lh-bump-golang-and-fix-CVEsCopy head branch name to clipboard