[clang-tools-extra] [clang-tidy] Add new performance-use-starts-ends-with check (PR #72385)

[Piotr Zegar via cfe-commits]

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@@ -8,6 +8,10 @@ corresponding ``std::string_view`` methods) result is compared with 0, and
 suggests replacing with ``absl::StartsWith()``. This is both a readability and
 performance issue.
 
+``starts_with`` was added as a built-in function on those types in C++20. If
+available, prefer enabling performance-use-starts-ends-with instead of this
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PiotrZSL wrote:

use :doc:`performance-use-starts-ends-with <../performance/use-starts-ends-with>`

https://github.com/llvm/llvm-project/pull/72385