[clang-tools-extra] [clang-tidy][NFC] use local config in test cases (PR #120004)

[Congcong Cai via cfe-commits]

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@@ -1,4 +1,4 @@
-// RUN: %check_clang_tidy -check-suffix=STRICT  %s cppcoreguidelines-pro-type-const-cast %t -- -config="{CheckOptions: {StrictMode: true}}"
+// RUN: %check_clang_tidy -check-suffix=STRICT  %s cppcoreguidelines-pro-type-const-cast %t -- -config="{CheckOptions: {cppcoreguidelines-pro-type-const-cast.StrictMode: true}}"
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HerrCai0907 wrote:

IMO, we should define check related config here instead of very top level. what i mention global options is also in this scopes instead of clangtidy's command line option.

https://github.com/llvm/llvm-project/pull/120004