Updated the copyright header to the newer version.

Signed-off-by: David Venable <[email protected]>

Author: dlvenable

data-prepper-api/src/main/java/org/opensearch/dataprepper/model/annotations/Experimental.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.model.annotations;

data-prepper-core/src/test/java/org/opensearch/dataprepper/plugins/TestExperimentalPlugin.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugins;

data-prepper-plugin-framework/src/main/java/org/opensearch/dataprepper/plugin/DefinedPlugin.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugin;

data-prepper-plugin-framework/src/main/java/org/opensearch/dataprepper/plugin/DeprecatedPluginDetector.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugin;

data-prepper-plugin-framework/src/main/java/org/opensearch/dataprepper/plugin/ExperimentalConfiguration.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugin;

data-prepper-plugin-framework/src/main/java/org/opensearch/dataprepper/plugin/ExperimentalConfigurationContainer.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugin;

data-prepper-plugin-framework/src/main/java/org/opensearch/dataprepper/plugin/ExperimentalPluginValidator.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugin;

data-prepper-plugin-framework/src/test/java/org/opensearch/dataprepper/plugin/DeprecatedPluginDetectorTest.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugin;

data-prepper-plugin-framework/src/test/java/org/opensearch/dataprepper/plugin/ExperimentalConfigurationTest.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugin;

data-prepper-plugin-framework/src/test/java/org/opensearch/dataprepper/plugin/ExperimentalPluginValidatorTest.java

@@ -1,6 +1,10 @@
 /*
  * Copyright OpenSearch Contributors
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
  */
 
 package org.opensearch.dataprepper.plugin;