add support for Node20

[SturdyStubs]

Adding Node20 to dockerfile - fix for previously failed attempts to upgrade node. Will improve build times by 4x due to no more deprecation messages.

[WilliamVenner]

I think both the current yolk and the yolk here after your changes are cooked in the year of our lord 2026.

Both branches gave me:

30.61 npm error Tracker "idealTree" already exists
30.61 npm error A complete log of this run can be found in: /root/.npm/_logs/2026-03-11T04_47_13_741Z-debug-0.log
------
Dockerfile:32
--------------------
  31 |
  32 | >>> RUN                  dpkg --add-architecture i386 \
  33 | >>>                      && apt update \
  34 | >>>                      && apt upgrade -y \
  35 | >>>                      && apt install -y lib32gcc-s1 lib32stdc++6 unzip curl iproute2 tzdata libgdiplus libsdl2-2.0-0:i386 \
  36 | >>>                      && curl -fsSL https://deb.nodesource.com/setup_20.x -o nodesource_setup.sh \
  37 | >>>                      && bash nodesource_setup.sh \
  38 | >>>                      && apt install -y nodejs \
  39 | >>>                      && mkdir /node_modules \
  40 | >>>                      && npm install --prefix / ws \
  41 | >>>                      && useradd -d /home/container -m container
  42 |
--------------------
ERROR: failed to build: failed to solve: process "/bin/sh -c dpkg --add-architecture i386 \t\t\t&& apt update \t\t\t&& apt upgrade -y \t\t\t&& apt install -y lib32gcc-s1 lib32stdc++6 unzip curl iproute2 tzdata libgdiplus libsdl2-2.0-0:i386 \t\t\t&& curl -fsSL https://deb.nodesource.com/setup_20.x -o nodesource_setup.sh    \t\t\t&& bash nodesource_setup.sh \t\t\t&& apt install -y nodejs \t\t\t&& mkdir /node_modules \t\t\t&& npm install --prefix / ws \t\t\t&& useradd -d /home/container -m container" did not complete successfully: exit code: 1

Unsure of how this is building in CI. https://github.com/pterodactyl/yolks/actions/runs/22532622329/job/65274371175 it's not 😳

[SturdyStubs]

I think both the current yolk and the yolk here after your changes are cooked in the year of our lord 2026.

Both branches gave me:

30.61 npm error Tracker "idealTree" already exists

30.61 npm error A complete log of this run can be found in: /root/.npm/_logs/2026-03-11T04_47_13_741Z-debug-0.log

------

Dockerfile:32

--------------------

  31 |

  32 | >>> RUN                  dpkg --add-architecture i386 \

  33 | >>>                      && apt update \

  34 | >>>                      && apt upgrade -y \

  35 | >>>                      && apt install -y lib32gcc-s1 lib32stdc++6 unzip curl iproute2 tzdata libgdiplus libsdl2-2.0-0:i386 \

  36 | >>>                      && curl -fsSL https://deb.nodesource.com/setup_20.x -o nodesource_setup.sh \

  37 | >>>                      && bash nodesource_setup.sh \

  38 | >>>                      && apt install -y nodejs \

  39 | >>>                      && mkdir /node_modules \

  40 | >>>                      && npm install --prefix / ws \

  41 | >>>                      && useradd -d /home/container -m container

  42 |

--------------------

ERROR: failed to build: failed to solve: process "/bin/sh -c dpkg --add-architecture i386 \t\t\t&& apt update \t\t\t&& apt upgrade -y \t\t\t&& apt install -y lib32gcc-s1 lib32stdc++6 unzip curl iproute2 tzdata libgdiplus libsdl2-2.0-0:i386 \t\t\t&& curl -fsSL https://deb.nodesource.com/setup_20.x -o nodesource_setup.sh    \t\t\t&& bash nodesource_setup.sh \t\t\t&& apt install -y nodejs \t\t\t&& mkdir /node_modules \t\t\t&& npm install --prefix / ws \t\t\t&& useradd -d /home/container -m container" did not complete successfully: exit code: 1

Unsure of how this is building in CI. https://github.com/pterodactyl/yolks/actions/runs/22532622329/job/65274371175 it's not 😳

I'll give it a test in a few days but when I made this PR it was working properly. I used this image as reference for my own image which uses this node 20 implementation to this day and works just fine.

A GitHub actions update could have broke something else in this image though.