Increased the minimum python version to 3.8

Author: GvozdevLeonid

pythonforandroid/bootstraps/common/build/src/main/java/org/kivy/android/PythonUtil.java

@@ -59,8 +59,8 @@ protected static ArrayList<String> getLibraries(File libsDir) {
             addLibraryIfExists(libsList, name, libsDir);
         }
 
-        for (int v = 14; v >= 5; v--) {
-            libsList.add("python3." + v + (v <= 7 ? "m" : ""));
+        for (int v = 14; v >= 8; v--) {
+            libsList.add("python3." + v);
         }
 
         libsList.add("main");
@@ -85,7 +85,7 @@ public static void loadLibraries(File filesDir, File libsDir) {
                 // load, and it has failed, give a more
                 // general error
                 Log.v(TAG, "Library loading error: " + e.getMessage());
-                if (lib.startsWith("python3.5") && !foundPython) {
+                if (lib.startsWith("python3.8") && !foundPython) {
                     throw new RuntimeException("Could not load any libpythonXXX.so");
                 } else if (lib.startsWith("python")) {
                     continue;