Replace deprecated url in pom

Remove the reference to tools.android.com, which is deprecated
and replace it with developer.android.com/studio/build

Was proposed in AOSP as
https://android-review.googlesource.com/c/platform/tools/buildSrc/+/1928165

Bug: N/A
Test: Manually verified
Change-Id: Iaf889db13cd69d25103250c7aaa3c8e4260fa0e4
diff --git a/src/main/groovy/com.android.tools.publish.gradle b/src/main/groovy/com.android.tools.publish.gradle
index 16e20a1..3257e85 100644
--- a/src/main/groovy/com.android.tools.publish.gradle
+++ b/src/main/groovy/com.android.tools.publish.gradle
@@ -61,7 +61,7 @@
                 def pomArtifactId = artifactId
                 pom.withXml {
                     asNode().appendNode('description', pomDescription)
-                    asNode().appendNode('url', 'http://tools.android.com/')
+                    asNode().appendNode('url', 'https://developer.android.com/studio/build')
                     asNode().appendNode('name', pomGroupId + '.' + pomArtifactId)
 
                     Node license = asNode().appendNode('licenses').appendNode('license')