Bump AGP to 7.3.0 inside the template (#34739)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/34739

AGP 7.3.0 just got released which is glorious!
This allows us to remove a lot of unnecessary boilerplate to handle correct task ordering
inside the template

This requires "react-native-gradle-plugin" version 0.71.1 to be published on NPM.

Changelog:
[Android] [Changed] - Bump AGP to 7.3.0 inside the template

Reviewed By: mdvacca, dmytrorykun

Differential Revision: D39653419

fbshipit-source-id: 517363c952cbad2be0f2766c0a2b7daf3e75048b

template/android/app/build.gradle

@@ -184,20 +184,6 @@ android {
             // preBuild.dependsOn("generateCodegenArtifactsFromSchema")
             preDebugBuild.dependsOn(packageReactNdkDebugLibs)
             preReleaseBuild.dependsOn(packageReactNdkReleaseLibs)
-
-            // Due to a bug inside AGP, we have to explicitly set a dependency
-            // between configureCMakeDebug* tasks and the preBuild tasks.
-            // This can be removed once this is solved: https://issuetracker.google.com/issues/207403732
-            configureCMakeRelWithDebInfo.dependsOn(preReleaseBuild)
-            configureCMakeDebug.dependsOn(preDebugBuild)
-            reactNativeArchitectures().each { architecture ->
-                tasks.findByName("configureCMakeDebug[${architecture}]")?.configure {
-                    dependsOn("preDebugBuild")
-                }
-                tasks.findByName("configureCMakeRelWithDebInfo[${architecture}]")?.configure {
-                    dependsOn("preReleaseBuild")
-                }
-            }
         }
     }
 

template/android/build.gradle

@@ -20,7 +20,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath("com.android.tools.build:gradle:7.2.1")
+        classpath("com.android.tools.build:gradle:7.3.0")
         classpath("com.facebook.react:react-native-gradle-plugin")
         classpath("de.undercouch:gradle-download-task:5.0.1")
         // NOTE: Do not place your application dependencies here; they belong