OWNERS: switch 'matches' to 'matchers'

The original OWNERS template had a mistake which used 'matches' instead
of the field supported by the Gerrit plugin 'matchers'.  Update the
OWNERS file to have the correct field.

Change-Id: Ic42d189b183ee8f632c48be15846ceb2a089db00
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
1 file changed