fix(lsp): don't pre-load documents matched in the config file's "exclude" (#19431)

This prevents documents specified in a deno.json's "exclude" from being
pre-loaded by the lsp.

For example, someone may have something like:

```jsonc
// deno.json
{
  "exclude": [
    "dist" // build directory
  ]
}
```

1 files changed, 3 insertions, 1 deletions

diff --git a/cli/util/path.rs b/cli/util/path.rs
index 39ba96d6d..ba1d0d926 100644
--- a/cli/util/path.rs
+++ b/cli/util/path.rs
@@ -73,7 +73,9 @@ pub fn mapped_specifier_for_tsc(
 pub fn specifier_to_file_path(
   specifier: &ModuleSpecifier,
 ) -> Result<PathBuf, AnyError> {
-  let result = if cfg!(windows) {
+  let result = if specifier.scheme() != "file" {
+    Err(())
+  } else if cfg!(windows) {
     match specifier.to_file_path() {
       Ok(path) => Ok(path),
       Err(()) => {