Fix Android annotation name from "@RecentlyNotNull" to "`@RecentlyN…

…onNull`."

I'm not sure what the _best_ citation for the proper spelling is, but maybe see [this source file](https://cs.android.com/android-studio/kotlin/+/master:third-party/annotations/androidx/annotation/RecentlyNonNull.java)?

PiperOrigin-RevId: 525257939

check_api/src/main/java/com/google/errorprone/dataflow/nullnesspropagation/NullnessAnnotations.java

@@ -42,7 +42,7 @@ public class NullnessAnnotations {
   private static final Predicate<String> ANNOTATION_RELEVANT_TO_NULLNESS =
       Pattern.compile(
               ".*\\b("
-                  + "(Recently)?NotNull|NonNull(Decl|Type)?|Nonnull|"
+                  + "(Recently)?NonNull(Decl|Type)?|NotNull|Nonnull|"
                   + "(Recently)?Nullable(Decl|Type)?|CheckForNull|PolyNull|MonotonicNonNull(Decl)?|"
                   + "ProtoMethodMayReturnNull|ProtoMethodAcceptsNullParameter|"
                   + "ProtoPassThroughNullness"