Ignore auto-generated mock files coverage (#19069)

Signed-off-by: NCongqi Xia <congqi.xia@zilliz.com>
Signed-off-by: NCongqi Xia <congqi.xia@zilliz.com>

codecov.yml

@@ -42,6 +42,5 @@ ignore:
   - "**/*.pb.go"
   - "**/*.proto"
   - "internal/metastore/db/dbmodel/mocks/.*"
-
-
+  - "internal/mocks/.*"