vuln-fix: Use HTTPS instead of HTTP to resolve dependencies

This fixes a security vulnerability in this project where the `build.gradle`
files were configuring Gradle to resolve dependencies over HTTP instead of
HTTPS.

Weakness: CWE-829: Inclusion of Functionality from Untrusted Control Sphere
Severity: High
CVSSS: 8.1
Detection: OpenRewrite

Reported-by: Jonathan Leitschuh <Jonathan.Leitschuh@gmail.com>
Signed-off-by: Jonathan Leitschuh <Jonathan.Leitschuh@gmail.com>

Bug-tracker: JLLeitschuh/security-research#9

Co-authored-by: Moderne <team@moderne.io>

build.gradle

@@ -4,7 +4,7 @@ buildscript {
     ext.kotlin_version = '1.3.72'
     repositories {
         google()
-        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+        maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
         jcenter()
         maven { url "https://jitpack.io" }
         mavenCentral()
@@ -21,7 +21,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+        maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
         jcenter()
         maven { url "https://jitpack.io" }
         mavenCentral()