feat(node): Support executing npm package lifecycle scripts (preinstall/install/postinstall) (#24487)

Adds support for running npm package lifecycle scripts, opted into via a
new `--allow-scripts` flag.

With this PR, when running `deno cache` (or `DENO_FUTURE=1 deno
install`) you can specify the `--allow-scripts=pkg1,pkg2` flag to run
lifecycle scripts attached to the given packages.

Note at the moment this only works when `nodeModulesDir` is true (using
the local resolver).

When a package with un-run lifecycle scripts is encountered, we emit a
warning suggesting things may not work and to try running lifecycle
scripts. Additionally, if a package script implicitly requires
`node-gyp` and it's not found on the system, we emit a warning.

Extra things in this PR:
- Extracted out bits of `task.rs` into a separate module for reuse
- Added a couple fields to `process.config` in order to support
`node-gyp` (it relies on a few variables being there)
- Drive by fix to downloading new npm packages to test registry

---

TODO:
- [x] validation for allow-scripts args (make sure it looks like an npm
package)
- [x] make allow-scripts matching smarter
- [ ] figure out what issues this closes

---
Review notes:
- This adds a bunch of deps to our test registry due to using
`node-gyp`, so it's pretty noisy

1 files changed, 14 insertions, 0 deletions

diff --git a/cli/args/mod.rs b/cli/args/mod.rs
index 553af51a1..e048b332a 100644
--- a/cli/args/mod.rs
+++ b/cli/args/mod.rs
@@ -1720,6 +1720,20 @@ impl CliOptions {
     }
     full_paths
   }
+
+  pub fn lifecycle_scripts_config(&self) -> LifecycleScriptsConfig {
+    LifecycleScriptsConfig {
+      allowed: self.flags.allow_scripts.clone(),
+      initial_cwd: if matches!(
+        self.flags.allow_scripts,
+        PackagesAllowedScripts::None
+      ) {
+        None
+      } else {
+        Some(self.initial_cwd.clone())
+      },
+    }
+  }
 }
 
 /// Resolves the path to use for a local node_modules folder.