Fixing version to work with JDK 1.8

Author: rgudwin

build.gradle

@@ -11,15 +11,15 @@ description = "CST-Bindings"
 java {
    //sourceCompatibility = JavaVersion.VERSION_11
    //targetCompatibility = JavaVersion.VERSION_11
-   //sourceCompatibility = JavaVersion.VERSION_1_8
-   //targetCompatibility = JavaVersion.VERSION_1_8
+   sourceCompatibility = JavaVersion.VERSION_1_8
+   targetCompatibility = JavaVersion.VERSION_1_8
 
     sourceCompatibility = JavaVersion.VERSION_17
     targetCompatibility = JavaVersion.VERSION_17
 
-    toolchain {
-        languageVersion = JavaLanguageVersion.of(21)
-    }
+    //toolchain {
+    //    languageVersion = JavaLanguageVersion.of(21)
+    //}
 }
 
 version = '1.1.1'