chore: update Dockerfile and requirements for Python 3.13, enhance error handling in config and tracker modules

Dockerfile

@@ -1,15 +1,16 @@
-FROM python:3.11-slim
+FROM python:3.13-slim
 
 LABEL org.opencontainers.image.source=https://github.com/BlessedRebuS/Krawl
 
 WORKDIR /app
 
 # Install gosu for dropping privileges
-RUN apt-get update && apt-get install -y --no-install-recommends gosu && \
+RUN apt-get update && apt-get upgrade -y && apt-get install -y --no-install-recommends gosu && \
     rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt /app/
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
 
 COPY src/ /app/src/
 COPY wordlists.json /app/