A while back @csantanapr proposed to add devcontainers to the Argo CD
tree (see #17286). After a few rounds in the contributors' meeting it
was proposed to add an issue template, so that for tools like this
there would at least be two maintainers that commit to keeping it
up-to-date.
See [proposal](https://docs.google.com/document/d/1mvfnaeCQgVpCixHchjMPtoW5WdtzLAp8cIr3nWFUSiU/edit)
for context.
Signed-off-by: Blake Pettersson <blake.pettersson@gmail.com>
