Bug fix on measurement.py loop (#13711)
Bug fix on measurement.py loop (#13711)

The loop was iterating through fixed file name and a pattern. The fixed file name did not exist, and the whole function failed.
With this change, we loop through the files if they exist.
hseok-oh/coreclr,cshung/coreclr,wtgodbe/coreclr,krk/coreclr,parjong/coreclr,kyulee1/coreclr,ruben-ayrapetyan/coreclr,wateret/coreclr,wateret/coreclr,JosephTremoulet/coreclr,mmitche/coreclr,ruben-ayrapetyan/coreclr,kyulee1/coreclr,rartemev/coreclr,AlexGhiondea/coreclr,dpodder/coreclr,wtgodbe/coreclr,wtgodbe/coreclr,botaberg/coreclr,rartemev/coreclr,JosephTremoulet/coreclr,JonHanna/coreclr,botaberg/coreclr,ruben-ayrapetyan/coreclr,parjong/coreclr,botaberg/coreclr,parjong/coreclr,JonHanna/coreclr,poizan42/coreclr,JonHanna/coreclr,ruben-ayrapetyan/coreclr,cshung/coreclr,krk/coreclr,mmitche/coreclr,poizan42/coreclr,poizan42/coreclr,JonHanna/coreclr,hseok-oh/coreclr,AlexGhiondea/coreclr,botaberg/coreclr,hseok-oh/coreclr,JonHanna/coreclr,wateret/coreclr,dpodder/coreclr,cshung/coreclr,krk/coreclr,rartemev/coreclr,AlexGhiondea/coreclr,JosephTremoulet/coreclr,parjong/coreclr,poizan42/coreclr,mmitche/coreclr,cshung/coreclr,yizhang82/coreclr,parjong/coreclr,poizan42/coreclr,kyulee1/coreclr,cshung/coreclr,hseok-oh/coreclr,mmitche/coreclr,wateret/coreclr,parjong/coreclr,rartemev/coreclr,krk/coreclr,mmitche/coreclr,AlexGhiondea/coreclr,krk/coreclr,hseok-oh/coreclr,JosephTremoulet/coreclr,cshung/coreclr,AlexGhiondea/coreclr,JonHanna/coreclr,JosephTremoulet/coreclr,kyulee1/coreclr,yizhang82/coreclr,wateret/coreclr,dpodder/coreclr,yizhang82/coreclr,JosephTremoulet/coreclr,wtgodbe/coreclr,ruben-ayrapetyan/coreclr,dpodder/coreclr,botaberg/coreclr,dpodder/coreclr,yizhang82/coreclr,AlexGhiondea/coreclr,wtgodbe/coreclr,mmitche/coreclr,rartemev/coreclr,ruben-ayrapetyan/coreclr,yizhang82/coreclr,yizhang82/coreclr,poizan42/coreclr,kyulee1/coreclr,rartemev/coreclr,wateret/coreclr,krk/coreclr,hseok-oh/coreclr,botaberg/coreclr,wtgodbe/coreclr,kyulee1/coreclr,dpodder/coreclr