Error on launching playbook provisioning.yml

Hello,
I have been trying to install IRMA on Ubuntu 20.04.6. I am getting below error upon executing command python irma-ansible.py environments/allinone_prod.yml playbooks/provisioning.yml
/home/wonder/.local/lib/python2.7/site-packages/ansible/parsing/vault/__init__.py:41: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in the next release.
  from cryptography.exceptions import InvalidSignature
irma-ansible.py:38: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
  self.config = yaml.load(f.read())
[+] Ansible vars written to /tmp/tmpxXfVWJ/vars.yml
[+] Ansible inventory written to /tmp/tmpxXfVWJ/inventory
[+] launching ansible-galaxy
- extracting ANXS.postgresql to /home/wonder/irma/ansible/roles/ANXS.postgresql
- ANXS.postgresql (cec55c974e6020044ef908e2acca9377d470b473) was installed successfully
- extracting franklinkim.sudo to /home/wonder/irma/ansible/roles/franklinkim.sudo
- franklinkim.sudo (1.9.0) was installed successfully
- extracting franklinkim.ufw to /home/wonder/irma/ansible/roles/franklinkim.ufw
- franklinkim.ufw (1.7.1) was installed successfully
- extracting jdauphant.nginx to /home/wonder/irma/ansible/roles/jdauphant.nginx
- jdauphant.nginx (v2.19) was installed successfully
- extracting Mayeu.RabbitMQ to /home/wonder/irma/ansible/roles/Mayeu.RabbitMQ
- Mayeu.RabbitMQ (47742f6d7c09edcd4ffb5b5c23ffff75599ed4e6) was installed successfully
- extracting mivok0.users to /home/wonder/irma/ansible/roles/mivok0.users
- mivok0.users (v1.2.5) was installed successfully
- extracting willshersystems.sshd to /home/wonder/irma/ansible/roles/willshersystems.sshd
- willshersystems.sshd (v0.7.2) was installed successfully
[+] launching ansible-playbook

PLAY [all] *********************************************************************
2023-07-04T13:06:29.128201 (delta: 0.022225)         elapsed: 0.022225 ******** 
=============================================================================== 

TASK [Gathering Facts] *********************************************************
2023-07-04T13:06:29.160314 (delta: 0.03207)         elapsed: 0.054338 ********* 
The authenticity of host '172.16.1.30 (172.16.1.30)' can't be established.
ECDSA key fingerprint is SHA256:0LPq1Ft47huodOEkDDZ0u/ddoq7fJNPVg27NEreV95Y.
Are you sure you want to continue connecting (yes/no/[fingerprint])? ok: [localhost]
yes
ok: [brain.irma]

TASK [Check ansible version] ***************************************************
2023-07-04T13:06:37.381036 (delta: 8.220652)         elapsed: 8.27506 ********* 
ok: [brain.irma -> localhost] => {
    "changed": false, 
    "msg": "All assertions passed"
}

PLAY [Common tasks to execute on all Linux servers] ****************************
2023-07-04T13:06:37.434029 (delta: 0.052917)         elapsed: 8.328053 ******** 
=============================================================================== 

TASK [quarkslab.apt : Check Apt last update] ***********************************
2023-07-04T13:06:37.469934 (delta: 0.035861)         elapsed: 8.363958 ******** 
ok: [brain.irma]

TASK [quarkslab.apt : Update Apt if needed] ************************************
2023-07-04T13:06:39.651884 (delta: 2.181906)         elapsed: 10.545908 ******* 
skipping: [brain.irma]

TASK [quarkslab.apt : Debian Security] *****************************************
2023-07-04T13:06:39.700841 (delta: 0.048885)         elapsed: 10.594865 ******* 
failed: [brain.irma] (item=[u'deb', u'http://security.debian.org/', u'stretch/updates', u'main']) => {"changed": false, "item": ["deb", "http://security.debian.org/", "stretch/updates", "main"], "msg": "Failed to auto-install python-apt. Error was: 'W: The repository 'http://deb.debian.org/debian stretch Release' does not have a Release file.\nW: The repository 'http://security.debian.org/debian-security stretch/updates Release' does not have a Release file.\nE: Failed to fetch http://deb.debian.org/debian/dists/stretch/main/source/Sources  404  Not Found [IP: 199.232.22.132 80]\nE: Failed to fetch http://security.debian.org/debian-security/dists/stretch/updates/main/source/Sources  404  Not Found [IP: 199.232.22.132 80]\nE: Some index files failed to download. They have been ignored, or old ones used instead.'"}
failed: [brain.irma] (item=[u'deb-src', u'http://security.debian.org/', u'stretch/updates', u'main']) => {"changed": false, "item": ["deb-src", "http://security.debian.org/", "stretch/updates", "main"], "msg": "Failed to auto-install python-apt. Error was: 'W: The repository 'http://security.debian.org/debian-security stretch/updates Release' does not have a Release file.\nW: The repository 'http://deb.debian.org/debian stretch Release' does not have a Release file.\nE: Failed to fetch http://security.debian.org/debian-security/dists/stretch/updates/main/source/Sources  404  Not Found [IP: 199.232.22.132 80]\nE: Failed to fetch http://deb.debian.org/debian/dists/stretch/main/source/Sources  404  Not Found [IP: 199.232.22.132 80]\nE: Some index files failed to download. They have been ignored, or old ones used instead.'"}

PLAY RECAP *********************************************************************
brain.irma                 : ok=3    changed=0    unreachable=0    failed=1   
localhost                  : ok=1    changed=0    unreachable=0    failed=0   

2023-07-04T13:06:51.089691 (delta: 11.388769)         elapsed: 21.983715 ******
I have referred to various issues present in the repository but could not find any solution to fix this issue. Please help me to find out the solution
quarkslab / irma

Error on launching playbook provisioning.yml #105
