Bump joomla/filter from 2.0.3 to 2.0.6

Bumps [joomla/filter](https://github.com/joomla-framework/filter) from 2.0.3 to 2.0.6.
- [Release notes](https://github.com/joomla-framework/filter/releases)
- [Commits](joomla-framework/filter@2.0.3...2.0.6)

---
updated-dependencies:
- dependency-name: joomla/filter
  dependency-version: 2.0.6
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]