fix(ext/node): lossy UTF-8 read node_modules files (#24140)

Previously various reads of files in `node_modules` would error on
invalid UTF-8. These were cases involving:

- reading package.json from Rust
- reading package.json from JS
- reading CommonJS files from JS
- reading CommonJS files from Rust (for ESM translation)
- reading ESM files from Rust

3 files changed, 20 insertions, 0 deletions

diff --git a/tests/specs/npm/lossy_utf8_script_from_cjs/__test__.jsonc b/tests/specs/npm/lossy_utf8_script_from_cjs/__test__.jsonc
new file mode 100644
index 000000000..c8d353de0
--- /dev/null
+++ b/tests/specs/npm/lossy_utf8_script_from_cjs/__test__.jsonc
@@ -0,0 +1,6 @@
+{
+  "args": "run --node-modules-dir --allow-read main.mjs",
+  "output": "main.out",
+  "exitCode": 0,
+  "tempDir": true
+}
diff --git a/tests/specs/npm/lossy_utf8_script_from_cjs/main.mjs b/tests/specs/npm/lossy_utf8_script_from_cjs/main.mjs
new file mode 100644
index 000000000..a9e70adfb
--- /dev/null
+++ b/tests/specs/npm/lossy_utf8_script_from_cjs/main.mjs
@@ -0,0 +1,10 @@
+import { createRequire } from "node:module";
+
+// Import this so that deno_graph knows to download this file.
+if (false) import("npm:@denotest/lossy-utf8-script@1.0.0");
+
+const require = createRequire(import.meta.url);
+
+const mod = require("@denotest/lossy-utf8-script");
+
+console.log(mod);
diff --git a/tests/specs/npm/lossy_utf8_script_from_cjs/main.out b/tests/specs/npm/lossy_utf8_script_from_cjs/main.out
new file mode 100644
index 000000000..4f062a2ae
--- /dev/null
+++ b/tests/specs/npm/lossy_utf8_script_from_cjs/main.out
@@ -0,0 +1,4 @@
+Download http://localhost:4260/@denotest/lossy-utf8-script
+Download http://localhost:4260/@denotest/lossy-utf8-script/1.0.0.tgz
+Initialize @denotest/lossy-utf8-script@1.0.0
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