:whale: Fixes Docker apt cache missed
:whale: Fixes Docker apt cache missed

Applies "cache busting" to avoid apt cache miss:
https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#run
The error was:
```
After this operation, 905 MB of additional disk space will be used.
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/f/file/libmagic-mgc_5.32-2ubuntu0.3_amd64.deb 404 Not Found [IP: 91.189.88.142 80]
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/f/file/libmagic1_5.32-2ubuntu0.3_amd64.deb 404 Not Found [IP: 91.189.88.142 80]
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/f/file/file_5.32-2ubuntu0.3_amd64.deb 404 Not Found [IP: 91.189.88.142 80]
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-libc-dev_4.15.0-96.97_amd64.deb 404 Not Found [IP: 91.189.88.142 80]
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/c/cups/libcups2_2.2.7-1ubuntu2.7_amd64.deb 404 Not Found [IP: 91.189.88.142 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/o/openldap/libldap-common_2.4.45+dfsg-1ubuntu1.4_all.deb 404 Not Found [IP: 91.189.88.142 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/o/openldap/libldap-2.4-2_2.4.45+dfsg-1ubuntu1.4_amd64.deb 404 Not Found [IP: 91.189.88.142 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/p/pulseaudio/libpulse0_11.1-1ubuntu7.5_amd64.deb 404 Not Found [IP: 91.189.88.142 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
```

kivy/buildozer,kivy/buildozer,rnixx/buildozer,rnixx/buildozer,kivy/buildozer,rnixx/buildozer,rnixx/buildozer,kivy/buildozer