Show what is outdated and why

Author: visr

.github/workflows/Downstream.yml

@@ -71,6 +71,7 @@ jobs:
             # force it to use this PR's version of the package
             Pkg.develop(PackageSpec(path="."))  # resolver may fail with main deps
             Pkg.update()
+            Pkg.status(; mode=PKGMODE_MANIFEST, outdated=true)
             Pkg.test(coverage=true)  # resolver may fail with test time deps
           catch err
             err isa Pkg.Resolve.ResolverError || rethrow()