feat(error-msg): add path to parsing error message (#296)

The error message on it's own is a bit bare. I can barely do anything
with the following

```
2026-01-07 13:08:31.885294487 +00:00:00 [ERROR] failed to parse license 'GPL-3.0' into a valid expression: GPL-3.0
^^^^^^^ a deprecated license identifier was used
```

Especially since it doesn't come from my source tree but from a
dependency. This commit adds the path of the file that's the reason for
this error. The file path should at least include the name of the
dependency so one could go there and ask for fixing the license
identifier.

Author: JasmineLowen

src/licenses/scan.rs

@@ -97,7 +97,7 @@ pub(crate) fn check_is_license_file(
                 Ok(expr) => expr,
                 Err(err) => {
                     log::error!(
-                        "failed to parse license '{}' into a valid expression: {err}",
+                        "failed to parse license '{}' at {path:?} into a valid expression: {err}",
                         ided.id.name
                     );
                     return None;
@@ -116,7 +116,7 @@ pub(crate) fn check_is_license_file(
                 Ok(expr) => expr,
                 Err(err) => {
                     log::error!(
-                        "failed to parse license '{}' into a valid expression: {err}",
+                        "failed to parse license '{}' at {path:?} into a valid expression: {err}",
                         ided.id.name
                     );
                     return None;