[Android] Update build tools

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas at videolabs.io> | Wed Jun  2 07:45:17 2021 +0200| [8206e5524693799ad834100e874a93b02f719057] | committer: Nicolas Pomepuy

Update build tools

> https://code.videolan.org/videolan/vlc-android/commit/8206e5524693799ad834100e874a93b02f719057
---

 build.gradle                      | 2 +-
 buildsystem/compile.sh            | 2 +-
 buildsystem/gitlab/.gitlab-ci.yml | 1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/build.gradle b/build.gradle
index ee6dfa7a7..9a9ebd959 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.android_plugin_version = '4.1.1'
+    ext.android_plugin_version = '4.2.1'
     ext.kotlin_version = '1.4.31'
     ext.kotlinx_version = '1.4.1'
     repositories {
diff --git a/buildsystem/compile.sh b/buildsystem/compile.sh
index 0b57a0197..340f56b51 100755
--- a/buildsystem/compile.sh
+++ b/buildsystem/compile.sh
@@ -260,7 +260,7 @@ fi
 
 if [ ! -d "gradle/wrapper" ]; then
     diagnostic "Downloading gradle"
-    GRADLE_VERSION=6.6
+    GRADLE_VERSION=6.7.1
     GRADLE_URL=https://download.videolan.org/pub/contrib/gradle/gradle-${GRADLE_VERSION}-bin.zip
     wget ${GRADLE_URL} 2>/dev/null || curl -O ${GRADLE_URL} || fail "gradle: download failed"
 
diff --git a/buildsystem/gitlab/.gitlab-ci.yml b/buildsystem/gitlab/.gitlab-ci.yml
index 6108c646a..547ad51ca 100644
--- a/buildsystem/gitlab/.gitlab-ci.yml
+++ b/buildsystem/gitlab/.gitlab-ci.yml
@@ -5,6 +5,7 @@ cache:
         - gradle-6.1.1/
         - gradle-6.5/
         - gradle-6.6/
+        - gradle-6.7.1/
         - gradle/
         - gradlew