JapScan: use older version of JsonParser method for stable compatibility (fixes #2481)

src/fr/japscan/build.gradle

@@ -5,7 +5,7 @@ ext {
     appName = 'Tachiyomi: Japscan'
     pkgNameSuffix = 'fr.japscan'
     extClass = '.Japscan'
-    extVersionCode = 19
+    extVersionCode = 20
     libVersion = '1.2'
 }
 
@@ -13,6 +13,6 @@ apply from: "$rootDir/common.gradle"
 
 dependencies {
     implementation 'org.apache.commons:commons-lang3:3.8.1'
-    compileOnly 'com.google.code.gson:gson:2.8.6'
+    compileOnly 'com.google.code.gson:gson:2.8.2'
     compileOnly 'com.github.salomonbrys.kotson:kotson:2.5.0'
 }

src/fr/japscan/src/eu/kanade/tachiyomi/extension/fr/japscan/Japscan.kt

@@ -183,7 +183,7 @@ class Japscan : ParsedHttpSource() {
     override fun searchMangaParse(response: Response): MangasPage {
         if ("live-search" in response.request().url().toString()) {
             val body = response.body()!!.string()
-            val json = JsonParser.parseString(body).asJsonArray
+            val json = JsonParser().parse(body).asJsonArray
             val mangas = json.map { jsonElement ->
                 searchMangaFromJson(jsonElement)
             }