Add org.eclipse.debug.terminal to be part of the repository

org.eclipse.debug.terminal is currently not meant to be referenced in
any feature but to be consumed for example by an EPP. To do so we need
to have it part of the update-site.

Author: laeubi

eclipse.platform.releng.tychoeclipsebuilder/eclipse.platform.repository/category.xml

@@ -23,4 +23,5 @@
    <bundle id="jakarta.inject.jakarta.inject-api" version="1.0.5"/>
    <bundle id="org.eclipse.equinox.slf4j"/>
    <bundle id="org.eclipse.tm.terminal.control"/>
-</site>
+   <bundle id="org.eclipse.debug.terminal"/>
+</site>