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.

3 files changed, 0 insertions, 10 deletions

diff --git a/cli/tests/testdata/task/npx/non_existent.out b/cli/tests/testdata/task/npx/non_existent.out
deleted file mode 100644
index 5df04917e..000000000
--- a/cli/tests/testdata/task/npx/non_existent.out
+++ /dev/null
@@ -1,2 +0,0 @@
-Task non-existent npx this-command-should-not-exist-for-you
-npx: could not resolve command 'this-command-should-not-exist-for-you'
diff --git a/cli/tests/testdata/task/npx/on_own.out b/cli/tests/testdata/task/npx/on_own.out
deleted file mode 100644
index 67491f7b0..000000000
--- a/cli/tests/testdata/task/npx/on_own.out
+++ /dev/null
@@ -1,2 +0,0 @@
-Task on-own npx
-npx: missing command
diff --git a/cli/tests/testdata/task/npx/package.json b/cli/tests/testdata/task/npx/package.json
deleted file mode 100644
index 59602b96f..000000000
--- a/cli/tests/testdata/task/npx/package.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "scripts": {
-    "non-existent": "npx this-command-should-not-exist-for-you",
-    "on-own": "npx"
-  }
-}