meta: bump nvm to v0.40.6 (#9010)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: ljharb

apps/site/snippets/en/download/nvm.bash

@@ -1,5 +1,5 @@
 # Download and install nvm:
-curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/install.sh | bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.6/install.sh | bash
 
 # in lieu of restarting the shell
 \. "$HOME/.nvm/nvm.sh"