…10106)

### Description

#10083 missed including `turbo.jsonc` as a global dependency when doing
SCM based filters

### Testing Instructions

👀

### Description

#10083 introduced a bug where we swallow validation errors and end up
silently ignoring these workspace `turbo.json` files. This PR fixes that
by distinguishing a missing `turbo.json` from a failed read.

The bug stems from the fact that a missing file and a failed read were
both errors so `turbo_json.or(turbo_jsonc)` could choose a missing
turbo.json error (which is fine, not all workspaces need `turbo.json`s)
over a validation error for the file that is present. We replace `.or`
with an extremely explicit `match` that goes through all the possible
combinations.

### Testing Instructions
Added unit test

Quick manual verification
```
[0 olszewski@macbookpro] /Users/olszewski/code/vercel/turborepo $ turbo_dev build   
 WARNING  No locally installed `turbo` found. Using version: 2.4.5-canary.6.
turbo 2.4.5-canary.6

turbo_json_parse_error

  × Failed to parse turbo.json.
  ╰─▶   × Found an unknown key `lol`.
          ╭─[cli/turbo.json:9:7]
        8 │     "rust-src": {
        9 │       "lol": true,
          ·       ─────
       10 │       "env": [
          ╰────
```