Bump stackable-zookeeper-crd from 691499c to 49c6cd2 (#18)

Bumps [stackable-zookeeper-crd](https://github.com/stackabletech/zookeeper-operator) from `691499c` to `49c6cd2`. - [Release notes](https://github.com/stackabletech/zookeeper-operator/releases) - [Commits](stackabletech/zookeeper-operator@691499c...49c6cd2) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]