Increment gradle wrapper version

kiwixbuild/dependencies.py

@@ -391,9 +391,9 @@ class Gradle(Dependency):
     name = "Gradle"
 
     class Source(ReleaseDownload):
-        archive = Remotefile('gradle-4.1-bin.zip',
-                             'd55dfa9cfb5a3da86a1c9e75bb0b9507f9a8c8c100793ccec7beb6e259f9ed43',
-                             'https://services.gradle.org/distributions/gradle-4.1-bin.zip')
+        archive = Remotefile('gradle-4.6-bin.zip',
+                             '98bd5fd2b30e070517e03c51cbb32beee3e2ee1a84003a5a5d748996d4b1b915',
+                             'https://services.gradle.org/distributions/gradle-4.6-bin.zip')
 
     class Builder(BaseBuilder):
         def build(self):

kiwixbuild/dependency_versions.py

@@ -10,7 +10,7 @@ main_project_versions = {
 
 # This is the "version" of the whole base_deps_versions dict.
 # Change this when you change base_deps_versions.
-base_deps_meta_version = '1'
+base_deps_meta_version = '2'
 
 
 base_deps_versions = {
@@ -23,6 +23,6 @@ base_deps_versions = {
   'libmicrohttpd' : '0.9.46',
   'gumbo' : '0.10.1',
   'icu4c' : '58.2',
-  'Gradle' : '3.4',
+  'Gradle' : '4.6',
   'libaria2' : '1.33.1'
 }