Trouble getting latest ca-certificates package

[Digital Larry 0]

1. trying to install my company's software package which uses curl.

linaro@linaro-alip:~$ sh -c "$(curl -L "https://downloads.remote.it/remoteit/install_agent.sh")"
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:--  0:00:01 --:--:--     0
curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: https://curl.haxx.se/docs/sslcerts.html

curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it. To learn more about this situation and
how to fix it, please visit the web page mentioned above.
linaro@linaro-alip:~$

2. but certificates are installed?
linaro@linaro-alip:~$ sudo dpkg -s ca-certificates
Package: ca-certificates
Status: install ok installed
Priority: optional
Section: misc
Installed-Size: 402
Maintainer: Julien Cristau <jcristau@debian.org>
Architecture: all
Multi-Arch: foreign
Version: 20200601~deb10u2
Depends: openssl (>= 1.1.1), debconf (>= 0.5) | debconf-2.0
Breaks: ca-certificates-java (<< 20121112+nmu1)
Enhances: openssl
Description: Common CA certificates
 Contains the certificate authorities shipped with Mozilla's browser to allow
 SSL-based applications to check for the authenticity of SSL connections.
 .
 Please note that Debian can neither confirm nor deny whether the
 certificate authorities whose certificates are included in this package
 have in any way been audited for trustworthiness or RFC 3647 compliance.
 Full responsibility to assess them belongs to the local system
 administrator.
linaro@linaro-alip:~$

3. Certificates version is 2020  (20200601~deb10u2) apparently, but cannot update to newer.

linaro@linaro-alip:~$ sudo apt update
Get:1 http://security.debian.org buster/updates InRelease [65.4 kB]
Hit:2 http://cdn-fastly.deb.debian.org/debian buster InRelease
Get:3 http://cdn-fastly.deb.debian.org/debian buster-updates InRelease [51.9 kB]
Fetched 117 kB in 4s (27.9 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done

Edited March 19, 2022 by Digital Larry