Update cronberry requirement from ~=3.1 to ~=4.0

Updates the requirements on [cronberry](https://github.com/tekktrik/cronberry) to permit the latest version.
- [Release notes](https://github.com/tekktrik/cronberry/releases)
- [Commits](tekktrik/cronberry@3.1.0...4.0.0.post0)

---
updated-dependencies:
- dependency-name: cronberry
  dependency-type: direct:production
...

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

scripts/requirements.txt

@@ -1,4 +1,4 @@
 # SPDX-FileCopyrightText: 2024 Alec Delaney
 # SPDX-License-Identifier: MIT
 
-cronberry~=3.1  # This is installed via pipx
+cronberry~=4.0  # This is installed via pipx