Update Javadoc version to 3.0 and fix package-info Javadoc.

PiperOrigin-RevId: 820253138
Change-Id: I2f73d929d5b23c0453d9aaa0f4df938d7348ae57

Author: ludoch

api/src/main/java/com/google/appengine/api/blobstore/ee10/package-info.java

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-/**
 /**
  * @deprecated as of version 3.0, use {@link
  *     com.google.appengine.api.blobstore.jakarta} instead.

api/src/main/java/com/google/appengine/api/mail/ee10/package-info.java

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-/**
 /**
  * @deprecated as of version 3.0, use {@link
  *     com.google.appengine.api.mail.jakarta} instead.

api/src/main/java/com/google/appengine/api/taskqueue/ee10/package-info.java

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-/**
 /**
  * @deprecated as of version 3.0, use {@link
  *     com.google.appengine.api.taskqueue.jakarta} instead.

kokoro/gcp_ubuntu/publish_javadoc.sh

@@ -261,11 +261,10 @@ pushd target/docfx-yml
 # create metadata for Java11/17/25
 python -m docuploader create-metadata \
  --name appengine-java-gen2-bundled-services \
- --version 2.0.0 \
+ --version 3.0 \
  --stem /appengine/docs/standard/java-gen2/reference/services/bundled \
  --language java
 
-
  echo "Done creating metadata."
 
 # upload yml to production bucket