Fix deprecations + updates

Summary

Resolves

• #95 (closed)
• #93 (closed)
• #89 (closed)
• #92 (closed)
• #86 (closed)
• #72 (closed)
• #70 (closed)

Focus

• Updating to Debian 12 made creating a venv in the Dockerfile necessary
• clang-format-11->clang-format-16
• no more deprecation warnings for inheriting from std::iterator
• boost::string_file was replaced by copying the implementation from boost

Test Environment

How to set up a test environment for manual testing?

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related issues
• Up-to-date CHANGELOG.md (or not necessary)
• Up-to-date JSON schema (or not necessary)
• Appropriate user and developer documentation (or not necessary)
  • How do I use the software? Assume "stupid" users.
  • How do I develop or debug the software? Assume novice developers.
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
• Appropriate user and developer documentation (or not necessary)
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.

.docker/Dockerfile

 FROM debian:bookworm
 
-# change to bash default for gitlab runner
-RUN unlink /bin/sh
-RUN ln -s /bin/bash /bin/sh
-
 RUN apt-get update
 RUN apt-get install -y cmake
 RUN apt-get install -y lcov
@@ -13,11 +9,8 @@ RUN apt-get install -y python3-pip python3-venv
 RUN apt-get install -y git  
 RUN apt-get install -y curl zip unzip tar
 RUN apt-get install -y perl pkg-config
-
-
 RUN apt-get install -y  openjdk-17-jdk-headless
 
-
 WORKDIR /
 RUN python3 -m venv ./venv
 RUN . ./venv/bin/activate
@@ -27,9 +20,7 @@ COPY requirements.txt build-requirements.txt
 RUN ./venv/bin/pip install -r build-requirements.txt
 RUN ./venv/bin/conan profile detect
 
-# add venv with conan to .bashrc
-RUN echo "source /venv/bin/activate" >> /root/.bashrc
-
+ENV PATH=/venv/bin:$PATH
 
 COPY . /libcaosdb/
 WORKDIR /libcaosdb