Upgrade pbuilder to use python3

Change-Id: I7d85b2d2ac31f22f6208388ba5d011705286233c
diff --git a/cicd/pipelines/global/pbuilder_arm64.jenkins b/cicd/pipelines/global/pbuilder_arm64.jenkins
index f8a621c..4703128 100644
--- a/cicd/pipelines/global/pbuilder_arm64.jenkins
+++ b/cicd/pipelines/global/pbuilder_arm64.jenkins
@@ -20,7 +20,7 @@
                 container('debian') {
                     sh """
                        apt-get update
-                       apt-get -y install build-essential python curl git qemu-user-static sudo
+                       apt-get -y install build-essential python3 python curl git qemu-user-static sudo
                        curl https://storage.googleapis.com/git-repo-downloads/repo > /usr/local/bin/repo
                        chmod a+x /usr/local/bin/repo
                        mkdir -p ${workdir}/.repo/local_manifests
diff --git a/cicd/pipelines/global/pbuilder_armhf.jenkins b/cicd/pipelines/global/pbuilder_armhf.jenkins
index 3d25f90..172f2c6 100644
--- a/cicd/pipelines/global/pbuilder_armhf.jenkins
+++ b/cicd/pipelines/global/pbuilder_armhf.jenkins
@@ -20,7 +20,7 @@
                 container('debian') {
                     sh """
                        apt-get update
-                       apt-get -y install build-essential python curl git qemu-user-static sudo
+                       apt-get -y install build-essential python3 python curl git qemu-user-static sudo
                        curl https://storage.googleapis.com/git-repo-downloads/repo > /usr/local/bin/repo
                        chmod a+x /usr/local/bin/repo
                        mkdir -p ${workdir}/.repo/local_manifests
diff --git a/cicd/pipelines/global/pbuilder_cross.jenkins b/cicd/pipelines/global/pbuilder_cross.jenkins
index f463310..d928165 100644
--- a/cicd/pipelines/global/pbuilder_cross.jenkins
+++ b/cicd/pipelines/global/pbuilder_cross.jenkins
@@ -20,7 +20,7 @@
                 container('debian') {
                     sh """
                        apt-get update
-                       apt-get -y install build-essential python curl git qemu-user-static sudo
+                       apt-get -y install build-essential python3 python curl git qemu-user-static sudo
                        curl https://storage.googleapis.com/git-repo-downloads/repo > /usr/local/bin/repo
                        chmod a+x /usr/local/bin/repo
                        mkdir -p ${workdir}/.repo/local_manifests