add debian 11 bullseye as major version (#140)

Author: Xenion1987

install_puppet_5_agent.sh

@@ -500,6 +500,7 @@ case $platform in
           "8") deb_codename="jessie";;
           "9") deb_codename="stretch";;
           "10") deb_codename="buster";;
+          "11") deb_codename="bullseye";;
         esac
         filetype="deb"
         filename="puppet5-release-${deb_codename}.deb"

install_puppet_6_agent.sh

@@ -505,6 +505,7 @@ case $platform in
           "8") deb_codename="jessie";;
           "9") deb_codename="stretch";;
           "10") deb_codename="buster";;
+          "11") deb_codename="bullseye";;
         esac
         filetype="deb"
         filename="puppet6-release-${deb_codename}.deb"

install_puppet_7_agent.sh

@@ -501,6 +501,7 @@ case $platform in
         case $major_version in
           "9") deb_codename="stretch";;
           "10") deb_codename="buster";;
+          "11") deb_codename="bullseye";;
         esac
         filetype="deb"
         filename="puppet7-release-${deb_codename}.deb"