apply the pattern of constant lib name to all components

Author: yifanyang

appcheck/firebase-appcheck-debug/src/main/java/com/google/firebase/appcheck/debug/FirebaseAppCheckDebugRegistrar.java

@@ -29,10 +29,11 @@
  */
 @KeepForSdk
 public class FirebaseAppCheckDebugRegistrar implements ComponentRegistrar {
+  public static final String LIBRARY_NAME = "fire-app-check-debug";
 
   @Override
   public List<Component<?>> getComponents() {
     return Arrays.asList(
-        LibraryVersionComponent.create("fire-app-check-debug", BuildConfig.VERSION_NAME));
+        LibraryVersionComponent.create(LIBRARY_NAME, BuildConfig.VERSION_NAME));
   }
 }

appcheck/firebase-appcheck-playintegrity/src/main/java/com/google/firebase/appcheck/playintegrity/FirebaseAppCheckPlayIntegrityRegistrar.java

@@ -29,10 +29,11 @@
  */
 @KeepForSdk
 public class FirebaseAppCheckPlayIntegrityRegistrar implements ComponentRegistrar {
+  public static final String LIBRARY_NAME = "fire-app-check-play-integrity";
 
   @Override
   public List<Component<?>> getComponents() {
     return Arrays.asList(
-        LibraryVersionComponent.create("fire-app-check-play-integrity", BuildConfig.VERSION_NAME));
+        LibraryVersionComponent.create(LIBRARY_NAME, BuildConfig.VERSION_NAME));
   }
 }

appcheck/firebase-appcheck-safetynet/src/main/java/com/google/firebase/appcheck/safetynet/FirebaseAppCheckSafetyNetRegistrar.java

@@ -29,10 +29,11 @@
  */
 @KeepForSdk
 public class FirebaseAppCheckSafetyNetRegistrar implements ComponentRegistrar {
+  public static final String LIBRARY_NAME = "fire-app-check-safety-net";
 
   @Override
   public List<Component<?>> getComponents() {
     return Arrays.asList(
-        LibraryVersionComponent.create("fire-app-check-safety-net", BuildConfig.VERSION_NAME));
+        LibraryVersionComponent.create(LIBRARY_NAME, BuildConfig.VERSION_NAME));
   }
 }