[build] add LIBYANG3_PY3 to lib-packages

[yijingyan2]

cherry-pick: #27836

Why I did it

I noticed that the sonic-swss-common build was failing in sonic-net/sonic-swss-common#1205 because the python3-libyang*.deb were not being published by sonic-buildimage builds.

How I did it

This PR fixes the issue by making the common_libs pipeline actually publish python3-libyang.

How to verify it

Ran a local build:

make init
BLDENV=bookworm make -f Makefile.work configure PLATFORM=vs ENABLE_DOCKER_BASE_PULL=y
BLDENV=bookworm SONIC_BUILD_JOBS=$(nproc) make -f Makefile.work lib-packages ENABLE_DOCKER_BASE_PULL=y

Verified that python3-libyang was built:

$> ls -lt target/debs/bookworm/ | grep libyang
-rw-r--r-- 1 bgallagher bgallagher   30284 Jun 11 21:47 python3-libyang_3.1.0-1_amd64.deb.log
-rw-r--r-- 1 bgallagher bgallagher   66648 Jun 11 21:47 python3-libyang_3.1.0-1_amd64.deb
-rw-r--r-- 1 bgallagher bgallagher     375 Jun 11 21:47 libyang-dev_3.12.2-1_amd64.deb-install.log
-rw-r--r-- 1 bgallagher bgallagher     436 Jun 11 21:47 libyang3_3.12.2-1_amd64.deb-install.log
-rw-r--r-- 1 bgallagher bgallagher     115 Jun 11 21:36 libyang-dev_3.12.2-1_amd64.deb.log
-rw-r--r-- 1 bgallagher bgallagher  829428 Jun 11 21:36 libyang-dev_3.12.2-1_amd64.deb
-rw-r--r-- 1 bgallagher bgallagher  656282 Jun 11 21:36 libyang3_3.12.2-1_amd64.deb.log
-rw-r--r-- 1 bgallagher bgallagher 1744356 Jun 11 21:36 libyang3-dbgsym_3.12.2-1_amd64.deb
-rw-r--r-- 1 bgallagher bgallagher  499644 Jun 11 21:36 libyang3_3.12.2-1_amd64.deb
-rw-r--r-- 1 bgallagher bgallagher   73504 Jun 11 21:36 libyang3-tools_3.12.2-1_amd64.deb
-rw-r--r-- 1 bgallagher bgallagher  132616 Jun 11 21:36 libyang3-tools-dbgsym_3.12.2-1_amd64.deb

Spun up a container, installed the packages and verified libyang can be imported in Python code:

docker run -it --rm -v $PWD/target/debs/bookworm:/debs \
  sonicdev-microsoft.azurecr.io:443/sonic-slave-bookworm:master-amd64 bash

(in the container)
root@668f226e35f3:/# sudo apt-get install -y /debs/libyang3_*.deb /debs/libyang-dev_3*.deb /debs/python3-libyang_*.deb
root@668f226e35f3:/# python3 -c 'import libyang; print("ok")'
ok

Which release branch to backport (provide reason below if selected)

• 202305
• 202311
• 202405
• 202411
• 202505
• 202511
• 202605

Tested branch (Please provide the tested image version)

Description for the changelog

Fix sonic-swss-common builds

Link to config_db schema for YANG module changes

N/A

[mssonicbld]

/azp run Azure.sonic-buildimage

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• ✅ login: yijingyan2 / name: Yijing Yan (d952713)
• ❌ - login: @yxieca-admin / name: Ying Xie. The commit (7665781) is not authorized under a signed CLA. Please click here to be authorized. For further assistance with EasyCLA, please visit our EasyCLA portal and chat with our support bot.

[mssonicbld]

/azp run Azure.sonic-buildimage

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