Update src/rack.rs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: scepter914

src/rack.rs

@@ -66,18 +66,20 @@ pub struct ProjectConfig {
 
 impl ProjectConfig {
     pub fn is_valid_version(&self, path_from_config_dir: &PathBuf) -> bool {
-        let project_name = path_from_config_dir
+        let project_name = match path_from_config_dir
             .parent()
-            .unwrap()
-            .to_str()
-            .unwrap()
-            .to_string();
-        let version = path_from_config_dir
+            .and_then(|p| p.to_str())
+        {
+            Some(s) => s.to_string(),
+            None => return false,
+        };
+        let version = match path_from_config_dir
             .file_name()
-            .unwrap()
-            .to_str()
-            .unwrap()
-            .to_string();
+            .and_then(|n| n.to_str())
+        {
+            Some(s) => s.to_string(),
+            None => return false,
+        };
         let version_elements: Vec<String> = version.split('.').map(|s| s.to_string()).collect();
 
         if self.is_yyyymmdd_project(&project_name) {