fix(Dockerfile): Update base image and requirements handling

Replaced 'frolvlad/alpine-python3' with 'python:3.14-alpine'.
Modified installation to use requirements.txt for dependencies.
Updated COPY commands for hoster.py and requirements.txt.

Dockerfile

@@ -1,11 +1,10 @@
-FROM frolvlad/alpine-python3
+FROM python:3.14-alpine
+
+COPY requirements.txt /tmp/requirements.txt
+RUN pip3 install -r /tmp/requirements.txt
 
-RUN pip3 install docker
 RUN mkdir /hoster
 WORKDIR /hoster
-ADD hoster.py /hoster/
+COPY hoster.py /hoster/
 
 CMD ["python3", "-u", "hoster.py"]
-
-
-