ca-certificates update

USN-8944-1 updated ca-certificates. This update provides the corresponding
changes for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and
Ubuntu 20.04 LTS by removing the "emSign ECC Root CA - G3" and "Comodo AAA
Services root" CA certificates.

Original advisory details:

This update removes the "emSign ECC Root CA - G3" CA certificate due to
intermediate CA certificates being compromised.

In addition, in Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS,
the ca-certificates package contained outdated CA certificates. This
update refreshes the included certificates to those contained in the 2.90
version of the Mozilla certificate authority bundle.