Update to Gradle 7.0 release

Author: ghale

build.gradle

@@ -16,10 +16,9 @@ version = ["git", "describe", "--match", "[0-9]*", "--dirty"].execute().text.tri
 def isCI = (System.getenv('CI') ?: 'false').toBoolean()
 
 // Maps supported Android plugin versions to the versions of Gradle that support it
-def sevenDotZeroNightly = "7.0-rc-2"
 def supportedVersions = [
-    "7.0.0-alpha12": ["6.8.3", sevenDotZeroNightly],
-    "4.2.0-rc01": ["6.8.3", sevenDotZeroNightly],
+    "7.0.0-alpha12": ["6.8.3", "7.0"],
+    "4.2.0-rc01": ["6.8.3", "7.0"],
     "4.1.2": ["6.5.1", "6.8.3"],
     "4.0.2": ["6.1.1", "6.8.3"],
     "3.6.4": ["5.6.4", "6.8.3"],