Upgrade pipeline to use bullseye. (#58)

Why I did it
GNMI native write needs to use bullseye as build environment.

How I did it
Upgrade pipeline to use bullseye.

How to verify it
PR checker should pass.

azure-pipelines.yml

@@ -40,7 +40,7 @@ stages:
       DIFF_COVER_WORKING_DIRECTORY: $(System.DefaultWorkingDirectory)/sonic-gnmi
 
     container:
-      image: sonicdev-microsoft.azurecr.io:443/sonic-slave-buster:latest
+      image: sonicdev-microsoft.azurecr.io:443/sonic-slave-bullseye:latest
 
     steps:
     - checkout: self
@@ -87,24 +87,25 @@ stages:
         sudo service redis-server start
 
         # LIBYANG
-        sudo dpkg -i ../target/debs/buster/libyang*1.0.73*.deb
+        sudo dpkg -i ../target/debs/bullseye/libyang*1.0.73*.deb
       displayName: "Install dependency"
 
     - script: |
         # LIBSWSSCOMMON
         sudo apt-get -y purge libhiredis-dev libnl-3-dev libnl-route-3-dev
-        sudo dpkg -i ../target/debs/buster/libnl-3-200_*.deb
-        sudo dpkg -i ../target/debs/buster/libnl-genl-3-200_*.deb
-        sudo dpkg -i ../target/debs/buster/libnl-route-3-200_*.deb
-        sudo dpkg -i ../target/debs/buster/libnl-nf-3-200_*.deb
-        sudo dpkg -i ../target/debs/buster/libhiredis0.14_*.deb
+        sudo dpkg -i ../target/debs/bullseye/libnl-3-200_*.deb
+        sudo dpkg -i ../target/debs/bullseye/libnl-genl-3-200_*.deb
+        sudo dpkg -i ../target/debs/bullseye/libnl-route-3-200_*.deb
+        sudo dpkg -i ../target/debs/bullseye/libnl-nf-3-200_*.deb
+        sudo dpkg -i ../target/debs/bullseye/libhiredis0.14_*.deb
+        sudo dpkg -i ../target/debs/bullseye/libhiredis-dev_*.deb
       displayName: "Install libswsscommon dependencies"
 
     - script: |
         set -ex
         # Install .NET CORE
         curl -sSL https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -
-        sudo apt-add-repository https://packages.microsoft.com/debian/10/prod
+        sudo apt-add-repository https://packages.microsoft.com/debian/11/prod
         sudo apt-get update
         sudo apt-get install -y dotnet-sdk-5.0
       displayName: "Install .NET CORE"
@@ -114,7 +115,7 @@ stages:
         source: specific
         project: build
         pipeline: Azure.sonic-swss-common
-        artifact: sonic-swss-common
+        artifact: sonic-swss-common.bullseye.amd64
         runVersion: 'latestFromBranch'
         runBranch: 'refs/heads/master'
       displayName: "Download sonic-swss-common"