[Fix #10135] Fix Style/WordArray to exclude files in --auto-gen-config when percent style is given but brackets are required

[dvandersluis]

When Style/WordArray is in percent style, offenses are registered for percent arrays that contain "invalid" characters, in order to replace them with a bracketed array instead. However, when this is the case, --auto-gen-config doesn't handle the file properly. This updates it to exclude the file since the result is inconsistent.

Fixes #10135.

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[dvandersluis]

InternalAffairs/StyleDetectedApiUse is registering a false positive here because it's detecting no_acceptable_style as a negative but the positive is within array_style_detected.

Interestingly, there does not seem to be any way to inline disable global offenses...

[bbatsov]

Thanks!