Nicovideo Seiga: Fix image intercept (#5469)

Fix images not decrypting

src/ja/nicovideoseiga/build.gradle

@@ -1,7 +1,7 @@
 ext {
     extName = 'Nicovideo Seiga'
     extClass = '.NicovideoSeiga'
-    extVersionCode = 5
+    extVersionCode = 6
 }
 
 apply from: "$rootDir/common.gradle"

src/ja/nicovideoseiga/src/eu/kanade/tachiyomi/extension/ja/nicovideoseiga/NicovideoSeiga.kt

@@ -220,7 +220,7 @@ class NicovideoSeiga : HttpSource() {
         // drm.cdn.nicomanga.jp -> Paid manga (Encrypted)
         // deliver.cdn.nicomanga.jp -> Free manga (Unencrypted)
         val imageRegex =
-            Regex("https://drm.cdn.nicomanga.jp/image/([a-f0-9]+)_\\d{4}/\\d+p(\\.[a-z]+)?(\\?\\d+)?")
+            Regex("https://drm.cdn.nicomanga.jp/image/([a-f0-9]+)_\\d+/\\d+p(\\.[a-z]+)?(\\?\\d+)?")
         val match = imageRegex.find(chain.request().url.toUrl().toString())
             ?: return chain.proceed(chain.request())