Merge "Add METADATA and OWNERS file" into main am: a9e0f541cd am: 4a8473386d

Original change: https://android-review.googlesource.com/c/platform/external/regex-re2/+/3079941

Change-Id: I10d50dbfce2774441a99083c6223394c50612977
Signed-off-by: Automerger Merge Worker <[email protected]>