[clang-tidy][NFC] Add custom .clang-format with 'QualifierAlignment: Left' (#155852)
["QualifierAlignment:
Left"](https://clang.llvm.org/docs/ClangFormatStyleOptions.html#qualifieralignment)
is an established way of writing code in `clang-tools-extra/clang-tidy`.
We should enforce it in CI.
This patch fixes all findings in current files that doesn't align with
left-alignment style.