Use https to access cloud storage bucket

Bug: 148609216
Change-Id: I3cbfe6cb14d98ca600f9f9b61687001af6e4895e
diff --git a/build.gradle b/build.gradle
index 1a9edec..d4f2a0f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -15,7 +15,7 @@
 buildscript {
     repositories {
         maven {
-            url 'http://storage.googleapis.com/r8-deps/maven_mirror/'
+            url 'https://storage.googleapis.com/r8-deps/maven_mirror/'
         }
         mavenCentral()
         gradlePluginPortal()
@@ -54,7 +54,7 @@
 
 repositories {
     maven {
-       url 'http://storage.googleapis.com/r8-deps/maven_mirror/'
+       url 'https://storage.googleapis.com/r8-deps/maven_mirror/'
     }
     google()
     mavenCentral()