Force Python 3.12 in Debian image (#288)

* Force python version 3.12 in debian image

* Update build/docker/debian.Dockerfile

---------

Co-authored-by: Oscar Reimer <oscar.reimer@debricked.com>

Author: filip-debricked

build/docker/debian.Dockerfile

@@ -92,7 +92,6 @@ RUN curl -fsSLO https://dot.net/v1/dotnet-install.sh \
 
 ENV GOLANG_VERSION="1.22"
 RUN apt -y update && apt -y upgrade && apt -y install \
-    python-is-python3 \
     ca-certificates && \
     apt -y install -t unstable \
     python3.12\
@@ -101,7 +100,8 @@ RUN apt -y update && apt -y upgrade && apt -y install \
     openjdk-21-jdk && \
     apt -y clean && rm -rf /var/lib/apt/lists/* && \
     # Symlink go binary to bin directory which is in path
-    ln -s /usr/lib/go-$GOLANG_VERSION/bin/go /usr/bin/go
+    ln -s /usr/lib/go-$GOLANG_VERSION/bin/go /usr/bin/go && \
+    ln -s /usr/bin/python3.12 /usr/bin/python
 
 RUN dotnet --version
 
@@ -120,7 +120,7 @@ RUN apt -y update && apt -y install \
 
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer
 
-RUN php -v && composer --version
+RUN ln -sf /usr/bin/python3.12 /usr/bin/python3 && php -v && composer --version && python3 --version
 
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