fixup! feat: make codspeed target path different depending on measurement mode

Author: GuillaumeLagrange

crates/cargo-codspeed/src/measurement_mode.rs

@@ -10,11 +10,15 @@ pub enum MeasurementMode {
     Walltime,
 }
 
-impl AsRef<Path> for MeasurementMode {
-    fn as_ref(&self) -> &Path {
-        match self {
-            MeasurementMode::Walltime => Path::new("walltime"),
-            MeasurementMode::Instrumentation => Path::new("instrumentation"),
-        }
+impl fmt::Display for MeasurementMode {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "{}",
+            match self {
+                MeasurementMode::Instrumentation => "instrumentation",
+                MeasurementMode::Walltime => "walltime",
+            }
+        )
     }
 }