devops: Check npm version in task setup-dev

Taskfile.yml

@@ -4,10 +4,11 @@
 # assuming `cargo` and [Task](https://taskfile.dev) are installed.
 
 # Beyond installing requirements, we generally shouldn't be using this as a
-# Makefile, requiring running this to have a good dev loop — rust tools are
-# independently good, and adding an intermediate layer means we're
-# reimplementing things or getting in the way. Instead, this can be used to
-# aggregate commands that's are currently separate; e.g. check out `test-all`.
+# Makefile — in other words, we shouldn't require running this as part of normal
+# development. Rust tools are independently good, and adding an intermediate
+# layer means we're reimplementing things or getting in the way. Instead, this
+# can be used to aggregate commands that are currently separate; e.g. check out
+# `test-all`.
 
 # Some of the file may be somewhat over-engineered!
 
@@ -143,6 +144,8 @@ tasks:
     status:
       - which hugo
       - which npm
+      # Check for a recent npm version
+      - "[ $(npm -v | cut -d. -f1) -ge 9 ]"
       - which python3
       - which elixir
     preconditions: