[Feature:Autograding] Add Erlang image (#53)

### Please check if the PR fulfills these requirements:

* [X] Tests for the changes have been added/updated (if possible)
* [X] Documentation has been updated/added if relevant

### What is the current behavior?
<!-- List issue if it fixes/closes/implements one using the "Fixes
#<number>" or "Closes #<number>" syntax -->
N/A

### What is the new behavior?
Can now run Erlang files

### Other information?
<!-- Is this a breaking change? -->
<!-- How did you test -->
I tested it using the code below
```erl
-module(concurrency).
-export([start/0, process/0]).

start() ->
    Pid = spawn(concurrency, process, []),
    Pid ! {self(), "Hello"},
    receive
        {Pid, Msg} -> io:format("Received message: ~p~n", [Msg])
    end.

process() ->
    receive
        {Sender, Msg} ->
            Sender ! {self(), Msg}
    end.
```

![image](https://github.com/user-attachments/assets/8ee78e7a-5a29-4ecf-8669-348242d45a0d)

dockerfiles/erlang/26/Dockerfile

@@ -0,0 +1,39 @@
+# Use the base image
+FROM ubuntu:22.04
+
+WORKDIR /usr/src/app
+ENV LANG=C.UTF-8
+ENV DEBIAN_FRONTEND=noninteractive
+ENV KERL_BASE_DIR=/usr/local/kerl
+
+# Install dependencies for Erlang and the build process
+RUN set -eux; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+    build-essential \
+    libncurses5-dev libsctp1 \
+    ca-certificates wget curl git \
+    autoconf m4 libssl-dev libwxgtk3.0-gtk3-dev libgl1-mesa-dev \
+    libglu1-mesa-dev libpng-dev libssh-dev unixodbc-dev xsltproc fop \
+    locales; \
+    rm -rf /var/lib/apt/lists/*
+
+# Install kerl to manage Erlang builds
+RUN curl -O https://raw.githubusercontent.com/kerl/kerl/master/kerl && \
+    chmod +x kerl && \
+    mv kerl /usr/local/bin/kerl
+
+# Update kerl releases and build Erlang 26.0
+RUN kerl update releases
+RUN MAKEFLAGS=-j6 kerl build 26.0 26.0_build
+RUN kerl install 26.0_build /usr/local/erlang/26.0
+
+# Cleanup the build files
+RUN rm -rf /usr/local/kerl/builds/26.0_build
+
+# Activate the Erlang environment by default
+RUN echo ". /usr/local/erlang/26.0/activate" >> /root/.bashrc && \
+    echo ". /usr/local/erlang/26.0/activate" >> /etc/profile
+
+# Default command
+CMD ["/bin/bash"]

dockerfiles/erlang/metadata.json

@@ -0,0 +1,3 @@
+{
+    "pushLatest": false
+}