Include module owner as OWNERS for DynamicInstrumentationManagerService

To make future code reviews easier, the module owner for
DynamicInstrumentationManagerService is set as the OWNERS of
platform/packages/modules/UprobeStats.

Flag: EXEMPT only changing OWNERS
Bug: 400457896
Change-Id: I8558cc68a832f23cfe507b593937c8a5c5331d18