[Dynasty] Update chapter regex (#12037)

* Allow underscores in chapter numbers

* Update extVersionCode

src/en/dynasty/build.gradle

@@ -6,7 +6,7 @@ ext {
     extName = 'Dynasty'
     pkgNameSuffix = 'en.dynasty'
     extClass = '.DynastyFactory'
-    extVersionCode = 17
+    extVersionCode = 18
 }
 
 apply from: "$rootDir/common.gradle"

src/en/dynasty/src/eu/kanade/tachiyomi/extension/en/dynasty/DynastySeries.kt

@@ -22,7 +22,7 @@ class DynastySeries : DynastyScans() {
 
     override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> {
         if (query.startsWith("manga:chapters:")) {
-            val seriesName = Regex("""manga:chapters:(.*?)_ch\d+""").matchEntire(query)?.groups?.get(1)?.value
+            val seriesName = Regex("""manga:chapters:(.*?)_ch[0-9_]+""").matchEntire(query)?.groups?.get(1)?.value
             if (seriesName != null) {
                 return super.fetchSearchManga(page, "manga:$searchPrefix:$seriesName", filters)
             }