xfce4-wavelan-plugin: update to 0.6.2

Change log:

0.6.2
======
- Fix ISO C90 forbids mixed declarations and code
- Update configure.ac.in syntax and enable debug when building from git
- Create READEM.md. Update configure.ac.in
- Add basic GitLab pipeline
- Update .gitignore, fix configure scripts
- Update URLs from goodies.x.o to docs.x.o (Bug #16181)
- Fix build with panel 4.15
- Make build less verbose
- s/http/https
- Translation Updates:
  Albanian, Armenian (Armenia), Belarusian, Bulgarian, Chinese
  (Taiwan), Eastern Armenian, English (Canada), French, Galician,
  Greek, Hebrew, Hungarian, Polish, Slovak, Slovenian, Spanish,
  Turkish, Uyghur

(gutteridge)