Use a static linked clang format for better compatability

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Sourced from https://github.com/muttleyxd/clang-tools-static-binaries/releases This makes it more convenient for Linux developers that do not have the correct version of clang-format on their path. This executable should work on any Linux distribution with a compatible binary format (which should be most everything). The benefits of a static executable in this context is that it does not depend on system library versions.

The linked repo has a couple of strategies for verifying that the executable is legit, if you are worried about that.