Enable precommit CI for clang-formatting

[robertbindar]

This pre-commit config will enable automatic clang-formatting using the pre-commit bot in GitHub PRs. Here's an example PR on my fork for how this bot would work: https://github.com/robertbindar/TileDB/pull/3

Please note, the bot needs activation on the pre-commit CI platform here after this PR is merged.

Also, feel free to read the Shortcut item tracking this change for more details on why this would be a good idea and the disadvantages coming with the current implementation of the pre-commit CI.

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TYPE: FEATURE DESC: Enable pre-commit bot for automatic clang-formatting of PRs

[shortcut-integration[bot]]

This pull request has been linked to Shortcut Story #14925: Automate formatting with pre-commit GitHub Actions bot.

[ihnorton]

Closing as stale, deferred.