Change color of superseded lifecycle badge to blue.

[batpigandme]

Erroneously had it as orange in #1663.

[jennybc]

I've made a second change here. Just in case we do more badge updates in the future I want to point this out. The SVGs here:

man/figures

are what usethis uses as a normal R package.

The SVGs here:

inst/templates

are what usethis places in other packages (or even itself) when their maintainer calls use_lifecycle().

So typically if you're making a badge update the second location is even more important than the first.

A good workflow is probably to make any necessary updates to inst/templates/lifecycle-*.svg, do load_all(), and then use_lifecycle() to see if man/figures/lifecycle-*.svg gets the intended updates.

Sidebar: the snapshot test failure is unrelated to this PR which I'm about to merge.