Docker Image SECCOMP Error on Debian Busters[Image Unsigned]

Error Message

$ apt update
Get:1 <http://ports.ubuntu.com/ubuntu-ports> focal InRelease [265 kB]
Get:2 <http://ports.ubuntu.com/ubuntu-ports> focal-updates InRelease [114 kB]
Err:1 <http://ports.ubuntu.com/ubuntu-ports> focal InRelease
  At least one invalid signature was encountered.
Get:3 <http://ports.ubuntu.com/ubuntu-ports> focal-backports InRelease [101 kB]
Err:2 <http://ports.ubuntu.com/ubuntu-ports> focal-updates InRelease
  At least one invalid signature was encountered.
Err:3 <http://ports.ubuntu.com/ubuntu-ports> focal-backports InRelease
  At least one invalid signature was encountered.
Get:4 <http://ports.ubuntu.com/ubuntu-ports> focal-security InRelease [109 kB]
Err:4 <http://ports.ubuntu.com/ubuntu-ports> focal-security InRelease
  At least one invalid signature was encountered.
Reading package lists... Done
W: GPG error: <http://ports.ubuntu.com/ubuntu-ports> focal InRelease: At least one invalid signature was encountered.
E: The repository '<http://ports.ubuntu.com/ubuntu-ports> focal InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: <http://ports.ubuntu.com/ubuntu-ports> focal-updates InRelease: At least one invalid signature was encountered.
E: The repository '<http://ports.ubuntu.com/ubuntu-ports> focal-updates InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: <http://ports.ubuntu.com/ubuntu-ports> focal-backports InRelease: At least one invalid signature was encountered.
E: The repository '<http://ports.ubuntu.com/ubuntu-ports> focal-backports InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: <http://ports.ubuntu.com/ubuntu-ports> focal-security InRelease: At least one invalid signature was encountered.
E: The repository '<http://ports.ubuntu.com/ubuntu-ports> focal-security InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Reason

• High-Level Implementation of Linux Kernel SECCOMP Filter[libsecomp] for debian busters

Solution:

• Only need to upgrade its libseccomp version to 2.5 or more higher version will fix

$ wget <http://ftp.kr.debian.org/debian/pool/main/libs/libseccomp/libseccomp2_2.5.1-1_armhf.deb>
$ sudo dpkg -i libseccomp2_2.5.1-1_armhf.deb