fix: add not exist check for loadConfigFile error (cosmos#1325)

* fix: add os.IsExist check for err

* Update CHANGELOG.md

* Apply suggestions from code review

Author: mmsqe

CHANGELOG.md

@@ -25,6 +25,7 @@
 * [\#1231](https://github.com/cosmos/relayer/pull/1231) Reduce get bech32 prefix when get signer.
 * [\#1302](https://github.com/cosmos/relayer/pull/1302) Avoid packet get relayed when estimated gas is higher than max gas.
 * [\#1303](https://github.com/cosmos/relayer/pull/1303) Add missing max gas amount on txf to avoid estimate less gas when simualte runTx.
+* [\#1325](https://github.com/cosmos/relayer/pull/1325) Ignore only file not exist error when loadConfigFile.
 
 ## v0.9.3
 

cmd/appstate.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"io/fs"
 	"os"
 	"path"
 
@@ -40,7 +41,10 @@ func (a *appState) loadConfigFile(ctx context.Context) error {
 
 	if _, err := os.Stat(cfgPath); err != nil {
 		// don't return error if file doesn't exist
-		return nil
+		if errors.Is(err, fs.ErrNotExist) {
+			err = nil
+		}
+		return err
 	}
 
 	// read the config file bytes