Bump spring-security-core from 5.1.11.RELEASE to 5.4.6 (#232)
Bump spring-security-core from 5.1.11.RELEASE to 5.4.6 (#232)

Bumps [spring-security-core](https://github.com/spring-projects/spring-security) from 5.1.11.RELEASE to 5.4.6.
- [Release notes](https://github.com/spring-projects/spring-security/releases)
- [Changelog](https://github.com/spring-projects/spring-security/blob/master/RELEASE.adoc)
- [Commits](https://github.com/spring-projects/spring-security/compare/5.1.11.RELEASE...5.4.6)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
talsma-ict/concurrency,talsma-ict/context-propagation