[clang-tools-extra] [clang-tidy] add depercation warning for non-whitelisted global options (PR #121057)

[Congcong Cai via cfe-commits]

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@@ -0,0 +1,3 @@
+// RUN: clang-tidy %s --config="{CheckOptions:{StrictMode: true}}" -checks="-*,modernize-use-std-format" | FileCheck %s 
+
+// CHECK: warning: deprecation global option 'StrictMode', please use 'modernize-use-std-format.StrictMode'. [clang-tidy-config]
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HerrCai0907 wrote:

```suggestion
// CHECK: warning: global option 'StrictMode' is deprecated, please use 'modernize-use-std-format.StrictMode' instead. [clang-tidy-config]
```


https://github.com/llvm/llvm-project/pull/121057