Migrate a few more OpenRewrite nullability annotations

Use this link to re-run the recipe: https://app.moderne.io/builder/rCfr27H6r?organizationId=T3BlblJld3JpdGU%3D

Co-authored-by: Moderne <[email protected]>

Author: knutwannheden

src/main/java/org/openrewrite/staticanalysis/java/package-info.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-@NonNullApi
+@NullMarked
 package org.openrewrite.staticanalysis.java;
 
-import org.openrewrite.internal.lang.NonNullApi;
+import org.jspecify.annotations.NullMarked;