fix: some expect error (#2622)

Signed-off-by: likewu <likewu@126.com>
Co-authored-by: houseme <housemecn@gmail.com>

crates/ecstore/src/client/credentials.rs

@@ -1,4 +1,3 @@
-#![allow(unused_imports)]
 // Copyright 2024 RustFS Team
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -12,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+#![allow(unused_imports)]
 #![allow(unused_variables)]
 #![allow(unused_mut)]
 #![allow(unused_assignments)]
@@ -57,7 +57,9 @@ impl<P: Provider + Default> Credentials<P> {
 
     pub fn get_with_context(&mut self, mut cc: Option<CredContext>) -> Result<Value, std::io::Error> {
         if self.is_expired() {
-            let creds = self.provider.retrieve_with_cred_context(cc.expect("err"));
+            let creds = self.provider.retrieve_with_cred_context(cc.unwrap_or(CredContext {
+                endpoint: "".to_string(),
+            }));
             self.creds = creds;
             self.force_refresh = false;
         }