NSIS: Update French translation

dist/windows/installer-translations/french.nsi

@@ -27,7 +27,7 @@ LangString launch_qbt ${LANG_FRENCH} "Lancer qBittorrent."
 ;LangString inst_requires_64bit ${LANG_ENGLISH} "This installer works only in 64-bit Windows versions."
 LangString inst_requires_64bit ${LANG_FRENCH} "Cet installateur ne fonctionne que dans les versions 64 bits de Windows."
 ;LangString inst_requires_win7 ${LANG_ENGLISH} "This qBittorrent version requires at least Windows 7."
-LangString inst_requires_win7 ${LANG_FRENCH} "This qBittorrent version requires at least Windows 7."
+LangString inst_requires_win7 ${LANG_FRENCH} "Cette version de qBittorrent nécessite au moins Windows 7."
 
 
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