Exclude JUnit bundles from deprecation report

Cleans irrelevant entries as can be seen at
https://download.eclipse.org/eclipse/downloads/drops4/I20250305-1800/apitools/deprecation/apideprecation.html

Author: akurtakov

eclipse.platform.releng.tychoeclipsebuilder/eclipse/apiexclude/exclude_list_external.txt

@@ -15,6 +15,9 @@ bcprov
 org.apache.httpcomponents.client5.httpclient5
 org.apache.httpcomponents.core5.httpcore5
 org.apache.httpcomponents.core5.httpcore5-h2
+junit-jupiter-api
+junit-platform-commons
+junit-platform-engine
 
 ## SPECIAL CASE FOR SWT: THE FRAGMENT IS ANALYZED AS PART OF THE HOST
 org.eclipse.swt.win32.win32.x86_64