Update nodered/node-red Docker tag to v4.0.4

[renovate]

This PR contains the following updates:

Package	Update	Change
nodered/node-red	patch	4.0.2-18-minimal -> 4.0.4-18-minimal

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Release Notes

node-red/node-red-docker (nodered/node-red)

v4.0.3

Compare Source

What's Changed

• Enable 32bit ARM builds by @​hardillb in https://github.com/node-red/node-red-docker/pull/443
• Add iputils-ping to the base packages by @​hardillb in https://github.com/node-red/node-red-docker/pull/445
• 🚀 Update to Node-RED 4.0.3 release by @​knolleary in https://github.com/node-red/node-red-docker/pull/451

Full Changelog: node-red/node-red-docker@v4.0.2...v4.0.3

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