[tink] Add OWNERS file

Add as owners the owners of the code that calls into this dependency.

The OWNERS file is generated by `fx update-3p-owners`.

Bug: 102810
Change-Id: I40b1e8b042985e41fcb346991ec593c46429e117
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/tink/+/775604
Reviewed-by: Alexandre Zani <azani@google.com>
Commit-Queue: Marina Ciocea <marinaciocea@google.com>
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..528b11e
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,5 @@
+# AUTOGENERATED FROM DEPENDENT BUILD TARGETS.
+# TO MAKE CHANGES HERE, UPDATE //third_party/owners.toml.
+# DOCS: https://fuchsia.dev/reference/tools/fx/cmd/update-3p-owners
+
+include /third_party/cobalt/OWNERS