Address PR comments: is_dir/is_file glob errors and toml syntax

- `is_dir` and `is_file` now return an error explicitly stating "Globbing not supported for multiple paths" if a glob pattern resolves to > 1 file. This mirrors bash behavior.
- Updated `eldritch-libreport/Cargo.toml` to use `glob = { workspace = true }` syntax.

Co-authored-by: hulto <7121375+hulto@users.noreply.github.com>

Author: google-labs-jules[bot]

implants/lib/eldritch/stdlib/eldritch-libfile/src/std/is_dir_impl.rs

@@ -6,8 +6,17 @@ use glob::glob;
 pub fn is_dir(path: String) -> Result<bool, String> {
     if path.contains('*') || path.contains('?') || path.contains('[') {
         let mut paths = glob(&path).map_err(|e| format!("Invalid glob pattern {path}: {e}"))?;
-        if let Some(Ok(first_match)) = paths.next() {
-            Ok(first_match.is_dir())
+        let first_match = paths.next();
+        let second_match = paths.next();
+
+        if second_match.is_some() {
+            return Err(format!(
+                "Globbing not supported for multiple paths (pattern: {path})"
+            ));
+        }
+
+        if let Some(Ok(match_path)) = first_match {
+            Ok(match_path.is_dir())
         } else {
             Ok(false)
         }

implants/lib/eldritch/stdlib/eldritch-libfile/src/std/is_file_impl.rs

@@ -6,8 +6,17 @@ use glob::glob;
 pub fn is_file(path: String) -> Result<bool, String> {
     if path.contains('*') || path.contains('?') || path.contains('[') {
         let mut paths = glob(&path).map_err(|e| format!("Invalid glob pattern {path}: {e}"))?;
-        if let Some(Ok(first_match)) = paths.next() {
-            Ok(first_match.is_file())
+        let first_match = paths.next();
+        let second_match = paths.next();
+
+        if second_match.is_some() {
+            return Err(format!(
+                "Globbing not supported for multiple paths (pattern: {path})"
+            ));
+        }
+
+        if let Some(Ok(match_path)) = first_match {
+            Ok(match_path.is_file())
         } else {
             Ok(false)
         }

implants/lib/eldritch/stdlib/eldritch-libreport/Cargo.toml

@@ -10,7 +10,7 @@ eldritch-agent = { workspace = true, optional = true }
 pb = { workspace = true, optional = true }
 nix = { workspace = true, optional = true }
 spin = { version = "0.10.0", features = ["rwlock"] }
-glob.workspace = true
+glob = { workspace = true }
 [target.'cfg(not(target_os = "linux"))'.dependencies]
 xcap = { workspace = true, optional = true }
 image = { version = "0.25", optional = true }