MangaFast Fix Incorrect SimpleDateFormat Pattern (#7720)

* Update build.gradle

* Update MangaFast.kt

src/en/mangafast/build.gradle

@@ -5,7 +5,7 @@ ext {
     extName = 'MangaFast'
     pkgNameSuffix = 'en.mangafast'
     extClass = '.MangaFast'
-    extVersionCode = 9
+    extVersionCode = 10
     libVersion = '1.2'
 }
 

src/en/mangafast/src/eu/kanade/tachiyomi/extension/en/mangafast/MangaFast.kt

@@ -104,7 +104,7 @@ class MangaFast : ParsedHttpSource() {
 
     companion object {
         val dateFormat by lazy {
-            SimpleDateFormat("MM/dd/YYYY", Locale.US)
+            SimpleDateFormat("MM/dd/yyyy", Locale.US)
         }
     }