Update defaults for erlang, elixir and node

Use more recent defaults:
 Erlang - latest 23 version
 Elixir - latest 1.13 version (this one works with Erlang 25)
 Node - update the default one from 10 to 14 (we ship 14 currently)
diff --git a/bin/install-dependencies.sh b/bin/install-dependencies.sh
index e670871..1bbf010 100755
--- a/bin/install-dependencies.sh
+++ b/bin/install-dependencies.sh
@@ -29,9 +29,9 @@
 set -e
 
 # Defaults updated 2019-10-14
-NODEVERSION=${NODEVERSION:-10}
-ERLANGVERSION=${ERLANGVERSION:-20.3.8.22}
-ELIXIRVERSION=${ELIXIRVERSION:-v1.9.1}
+NODEVERSION=${NODEVERSION:-14}
+ERLANGVERSION=${ERLANGVERSION:-23.3.4.15}
+ELIXIRVERSION=${ELIXIRVERSION:-v1.13.4}
 
 
 # This works if we're not called through a symlink
diff --git a/bin/install-elixir.sh b/bin/install-elixir.sh
index 888a5e5..776ab56 100755
--- a/bin/install-elixir.sh
+++ b/bin/install-elixir.sh
@@ -28,7 +28,7 @@
 set -e
 
 ELIXIR_PACKAGES=https://github.com/elixir-lang/elixir/releases/download
-ELIXIR_VSN=${ELIXIRVERSION:-v1.7.4}
+ELIXIR_VSN=${ELIXIRVERSION:-v1.13.4}
 
 # Check if running as root
 if [[ ${EUID} -ne 0 ]]; then
diff --git a/dockerfiles/centos-7 b/dockerfiles/centos-7
index de009a3..d028682 100644
--- a/dockerfiles/centos-7
+++ b/dockerfiles/centos-7
@@ -24,8 +24,8 @@
 # Choose whether to install Erlang, default yes
 ARG erlang=erlang
 # Select version of Node, Erlang and Elixir to install
-ARG erlangversion=23.3.4.14
-ARG elixirversion=v1.12.3
+ARG erlangversion=23.3.4.15
+ARG elixirversion=v1.13.4
 ARG nodeversion=14
 
 # Create Jenkins user and group
diff --git a/dockerfiles/debian-bullseye b/dockerfiles/debian-bullseye
index 4938419..b159fff 100644
--- a/dockerfiles/debian-bullseye
+++ b/dockerfiles/debian-bullseye
@@ -26,9 +26,8 @@
 # Choose whether to install Erlang, default yes
 ARG erlang=erlang
 # Select version of Node, Erlang and Elixir
-ARG erlangversion=23.3.4.14
-ARG kerlversions=23.3.4.14,24.3.4.1,25.0.1
-ARG elixirversion=v1.12.3
+ARG erlangversion=23.3.4.15
+ARG elixirversion=v1.13.4
 ARG nodeversion=14
 
 # Create Jenkins user and group
@@ -46,7 +45,6 @@
 # Install all dependencies, and optionally SM 1.8.5
 # This allows us to use the same Dockerfile for building SM
 RUN ERLANGVERSION=$erlangversion \
-  KERLVERSIONS=$kerlversions \
   ELIXIRVERSION=$elixirversion \
   NODEVERSION=$nodeversion \
   /root/couchdb-ci/bin/install-dependencies.sh $js $erlang
diff --git a/dockerfiles/debian-buster b/dockerfiles/debian-buster
index 42ee4f7..d928213 100644
--- a/dockerfiles/debian-buster
+++ b/dockerfiles/debian-buster
@@ -26,9 +26,8 @@
 # Choose whether to install Erlang, default yes
 ARG erlang=erlang
 # Select version of Node, Erlang and Elixir
-ARG erlangversion=23.3.4.14,
-ARG kerlversions=23.3.4.14,24.3.4.1,25.0.1
-ARG elixirversion=v1.12.3
+ARG erlangversion=23.3.4.15
+ARG elixirversion=v1.13.4
 ARG nodeversion=14
 
 # Create Jenkins user and group
@@ -46,7 +45,6 @@
 # Install all dependencies, and optionally SM 1.8.5
 # This allows us to use the same Dockerfile for building SM
 RUN ERLANGVERSION=$erlangversion \
-  KERLVERSIONS=$kerlversions \
   ELIXIRVERSION=$elixirversion \
   NODEVERSION=$nodeversion \
   /root/couchdb-ci/bin/install-dependencies.sh $js $erlang
diff --git a/dockerfiles/rockylinux-8 b/dockerfiles/rockylinux-8
index dd85dc8..7efb3f8 100644
--- a/dockerfiles/rockylinux-8
+++ b/dockerfiles/rockylinux-8
@@ -24,8 +24,8 @@
 # Choose whether to install Erlang, default yes
 ARG erlang=erlang
 # Select version of Node, Erlang and Elixir to install
-ARG erlangversion=23.3.4.14
-ARG elixirversion=v1.12.3
+ARG erlangversion=23.3.4.15
+ARG elixirversion=v1.13.4
 ARG nodeversion=14
 
 # Create Jenkins user and group
diff --git a/dockerfiles/ubuntu-bionic b/dockerfiles/ubuntu-bionic
index 3b37978..03a75b6 100644
--- a/dockerfiles/ubuntu-bionic
+++ b/dockerfiles/ubuntu-bionic
@@ -24,8 +24,8 @@
 # Choose whether to install Erlang, default yes
 ARG erlang=erlang
 # Select version of Node, Erlang and Elixir to install
-ARG erlangversion=23.3.4.14
-ARG elixirversion=v1.12.3
+ARG erlangversion=23.3.4.15
+ARG elixirversion=v1.13.4
 ARG nodeversion=14
 
 # Create Jenkins user and group
diff --git a/dockerfiles/ubuntu-focal b/dockerfiles/ubuntu-focal
index 042fdfa..e136395 100644
--- a/dockerfiles/ubuntu-focal
+++ b/dockerfiles/ubuntu-focal
@@ -24,8 +24,8 @@
 # Choose whether to install Erlang, default yes
 ARG erlang=erlang
 # Select version of Node, Erlang and Elixir to install
-ARG erlangversion=23.3.4.14
-ARG elixirversion=v1.12.3
+ARG erlangversion=23.3.4.15
+ARG elixirversion=v1.13.4
 ARG nodeversion=14
 
 # Create Jenkins user and group
diff --git a/dockerfiles/ubuntu-jammy b/dockerfiles/ubuntu-jammy
index 6c5ceab..98d90a2 100644
--- a/dockerfiles/ubuntu-jammy
+++ b/dockerfiles/ubuntu-jammy
@@ -24,8 +24,8 @@
 # Choose whether to install Erlang, default yes
 ARG erlang=erlang
 # Select version of Node, Erlang and Elixir to install
-ARG erlangversion=23.3.4.14
-ARG elixirversion=v1.12.3
+ARG erlangversion=23.3.4.15
+ARG elixirversion=v1.13.4
 ARG nodeversion=14
 
 # Create Jenkins user and group