Enable dependabot
Enable dependabot

This should enable a bot that auto-creates PRs to update dependencies.

For more info, see
https://docs.github.com/en/code-security/supply-chain-security/keeping-your-dependencies-updated-automatically

Once enabled, dependabot work should be seen at
https://github.com/opencontainers/runc/network/updates
(as well as new PRs).

Signed-off-by: Kir Kolyshkin <3a017b8ddb3f9cf3e4a59978b004111bdeb97f08@gmail.com>

kolyshkin/runc,kolyshkin/runc,dqminh/runc,rhatdan/runc,rhatdan/runc,kolyshkin/runc,rhatdan/runc,opencontainers/runc,opencontainers/runc,rhatdan/runc,dqminh/runc,kolyshkin/runc,dqminh/runc,opencontainers/runc,opencontainers/runc,dqminh/runc