⬆️ Update psutil requirement from ~=7.1.2 to ~=7.2.1

Updates the requirements on [psutil](https://github.com/giampaolo/psutil) to permit the latest version.
- [Changelog](https://github.com/giampaolo/psutil/blob/master/HISTORY.rst)
- [Commits](giampaolo/psutil@release-7.1.2...release-7.2.1)

---
updated-dependencies:
- dependency-name: psutil
  dependency-version: 7.2.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,7 +1,7 @@
 # Python packages requirements
 pyserial~=3.5          # Serial link to communicate with the display
 PyYAML~=6.0.3          # For themes files
-psutil~=7.1.2          # CPU / disk / network metrics
+psutil~=7.2.1          # CPU / disk / network metrics
 pystray~=0.19.5        # Tray icon (all OS)
 babel~=2.17.0          # Date/time formatting
 ruamel.yaml~=0.18.16    # For configuration editor