update clang-format version

[vtavana]

The PR proposes to update clang-format version.

There is a hard dependency to run the check with clang-format-15, since it is the latest version available for Ubuntu 22.04 (at the moment, ubuntu_latest is Ubuntu 22.04). Need to note that different versions of clang-format might be incompatible with each other and so format C++ code differently.

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