chore(release): 1.0.0-beta.4 [skip ci]

# [1.0.0-beta.4](https://code.podlibre.org/podlibre/castopod-host/compare/v1.0.0-beta.3...v1.0.0-beta.4) (2022-01-29)

### Bug Fixes

* **housekeeping:** replace the use of GLOB_BRACE with looping over file extensions ([42d92d0c](https://code.podlibre.org/podlibre/castopod-host/commit/42d92d0c8dfe0c567c28f5bfdda129890fa4c2ec)), closes [#154](https://code.podlibre.org/podlibre/castopod-host/issues/154)
* **housekeeping:** set default sizes value + ignore illegal IFD size error to proceed with script ([f21ca576](https://code.podlibre.org/podlibre/castopod-host/commit/f21ca57603cfa503699b7e09a155e18d876d65fe))

### Features

* **housekeeping:** add clear_cache option to flush redis or files cache ([99bfac0b](https://code.podlibre.org/podlibre/castopod-host/commit/99bfac0b428a4bc6fe8bfd10a355dfd93f42ba5c))