Upgrade `kubeyaml` to `0.7.0`

The `kubeyaml set` command used to update values by YAML dot
notation path was introduced in this version.

bin/kubeyaml

@@ -1,2 +1,2 @@
 #!/bin/sh
-docker run --rm -i quay.io/squaremo/kubeyaml:0.6.1 "$@"
+docker run --rm -i quay.io/squaremo/kubeyaml:0.7.0 "$@"

docker/Dockerfile.flux

@@ -34,7 +34,7 @@ LABEL maintainer="Flux CD <https://github.com/fluxcd/flux/issues>" \
 ENTRYPOINT [ "/sbin/tini", "--", "fluxd" ]
 
 # Get the kubeyaml binary (files) and put them on the path
-COPY --from=quay.io/squaremo/kubeyaml:0.6.1 /usr/lib/kubeyaml /usr/lib/kubeyaml/
+COPY --from=quay.io/squaremo/kubeyaml:0.7.0 /usr/lib/kubeyaml /usr/lib/kubeyaml/
 ENV PATH=/bin:/usr/bin:/usr/local/bin:/usr/lib/kubeyaml
 
 # Create minimal nsswitch.conf file to prioritize the usage of /etc/hosts over DNS queries.