feat(candylinkvpn): add unlock-pro patch (#2157)

Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>

src/main/kotlin/app/revanced/patches/candylinkvpn/fingereprints/IsPremiumPurchasedFingerprint.kt

@@ -0,0 +1,11 @@
+package app.revanced.patches.candylinkvpn.fingereprints
+
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+
+object IsPremiumPurchasedFingerprint : MethodFingerprint(
+    customFingerprint = { methodDef, _ ->
+        methodDef.definingClass.endsWith("PreferenceProvider;") &&
+                methodDef.name == "isPremiumPurchased"
+    }
+) {
+}