[clang-tools-extra] [clang-tidy] Rename 'google-build-namespaces' check to 'misc-anonymous-namespace-in-header' and keep initial as alias. (PR #170986)

[Baranov Victor via cfe-commits]

=?utf-8?q?Ond=C5=99ej_=C5=A0torc?= <storc.1998 at gmail.com>,Ondrej Storc
 <storcond at fit.cvut.cz>,Ondrej Storc <storcond at fit.cvut.cz>,Ondrej Storc
 <storcond at fit.cvut.cz>,Ondrej Storc <storcond at fit.cvut.cz>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/170986 at github.com>

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