tests/integration: fix flake8 failures (E721 do not compare types), and fix Dockerfile for debian "bookworm"

[thaJeztah]

• relates to tests/integration: update some tests for updated error-messages #3165, where I saw these failures.

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Run flake8 docker/ tests/ flake8 docker/ tests/ shell: /usr/bin/bash -e {0} env: DOCKER_BUILDKIT: 1 pythonLocation: /opt/hostedtoolcache/Python/3.11.4/x64 PKG_CONFIG_PATH: /opt/hostedtoolcache/Python/3.11.4/x64/lib/pkgconfig Python_ROOT_DIR: /opt/hostedtoolcache/Python/3.11.4/x64 Python2_ROOT_DIR: /opt/hostedtoolcache/Python/3.11.4/x64 Python3_ROOT_DIR: /opt/hostedtoolcache/Python/3.11.4/x64 LD_LIBRARY_PATH: /opt/hostedtoolcache/Python/3.11.4/x64/lib tests/integration/api_container_test.py:1395:16: E721 do not compare types, for exact checks use `is` / `is not`, for instance checks use `isinstance()` tests/integration/api_container_test.py:1408:24: E721 do not compare types, for exact checks use `is` / `is not`, for instance checks use `isinstance()` tests/integration/api_image_test.py:35:16: E721 do not compare types, for exact checks use `is` / `is not`, for instance checks use `isinstance()` tests/integration/api_image_test.py:46:16: E721 do not compare types, for exact checks use `is` / `is not`, for instance checks use `isinstance()` Error: Process completed with exit code 1. 

[thaJeztah]

Ah, lol, and more failures due to the base-image having switched to "bookworm";

Dockerfile:8 -------------------- 7 | ARG APT_MIRROR 8 | >>> RUN sed -ri "s/(httpredir|deb).debian.org/${APT_MIRROR:-deb.debian.org}/g" /etc/apt/sources.list \ 9 | >>> && sed -ri "s/(security).debian.org/${APT_MIRROR:-security.debian.org}/g" /etc/apt/sources.list 10 | -------------------- ERROR: failed to solve: process "/bin/sh -c sed -ri \"s/(httpredir|deb).debian.org/${APT_MIRROR:-deb.debian.org}/g\" /etc/apt/sources.list && sed -ri \"s/(security).debian.org/${APT_MIRROR:-security.debian.org}/g\" /etc/apt/sources.list" did not complete successfully: exit code: 2 

[milas]

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