ci: add spell checker and fix existing typo (#3420)

* ci: add spell checker and fix existing typo

* chore: move typos.toml to .github

* fix: correct config file path

dialect/gremlin/config.go

@@ -25,7 +25,7 @@ type (
 		httpClient   *http.Client
 	}
 
-	// Endpoint wraps a url to add flag unmarshaling.
+	// Endpoint wraps a url to add flag unmarshalling.
 	Endpoint struct {
 		*url.URL
 	}

dialect/gremlin/graph/edge.go

@@ -56,7 +56,7 @@ func (e Edge) MarshalGraphson() ([]byte, error) {
 func (e *Edge) UnmarshalGraphson(data []byte) error {
 	var edge edge
 	if err := graphson.Unmarshal(data, &edge); err != nil {
-		return fmt.Errorf("unmarshaling edge: %w", err)
+		return fmt.Errorf("unmarshalling edge: %w", err)
 	}
 
 	*e = NewEdge(

dialect/gremlin/request_test.go

@@ -119,7 +119,7 @@ func TestCredentialsBadEncodingMarshaling(t *testing.T) {
 			text: []byte("Kg=="),
 		},
 		{
-			name: "NoSeperator",
+			name: "NoSeparator",
 			text: []byte("AHVzZXI="),
 		},
 	}