chore: move cli/tests/ -> tests/ (#22369)

This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/unit_node/testdata/child_process_unref.js b/tests/unit_node/testdata/child_process_unref.js
new file mode 100644
index 000000000..8201ac44d
--- /dev/null
+++ b/tests/unit_node/testdata/child_process_unref.js
@@ -0,0 +1,10 @@
+import cp from "node:child_process";
+import * as path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const script = path.join(
+  path.dirname(fileURLToPath(import.meta.url)),
+  "infinite_loop.js",
+);
+const childProcess = cp.spawn(Deno.execPath(), ["run", script]);
+childProcess.unref();