Add FFY00 to CODEOWNERS for generate-build-details (#139561)

Signed-off-by: Filipe Laíns <lains@riseup.net>

Author: FFY00

.github/CODEOWNERS

@@ -86,6 +86,10 @@ Modules/makesetup                @erlend-aasland @AA-Turner @emmatyping
 Modules/Setup*                   @erlend-aasland @AA-Turner @emmatyping
 Tools/build/regen-configure.sh   @AA-Turner
 
+# generate-build-details
+Tools/build/generate-build-details.py   @FFY00
+Lib/test/test_build_details.py          @FFY00
+
 
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 # Documentation