* pulling image by default
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>

* modify image path to ghcr.io/chaos-mesh/chaos-mesh
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>

* login to docker registry
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>

* add label for dev-env and build-env
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>

* rebuild image when it contains labels
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>

* fix make target name
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>

* don't specify the path of git checkout
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>

* modify according to comments
Signed-off-by: YangKeao <yangkeao@chunibyo.icu>
Co-authored-by: Ti Chi Robot <ti-community-prow-bot@tidb.io>