Update to go1.22

Co-authored-by: Julien Salleyron <julien.salleyron@gmail.com>

pkg/middlewares/accesslog/logger_test.go

@@ -25,6 +25,8 @@ import (
 	"github.com/traefik/traefik/v2/pkg/types"
 )
 
+const delta float64 = 1e-10
+
 var (
 	logFileNameSuffix       = "/traefik/logger/test.log"
 	testContent             = "Hello, World"
@@ -278,7 +280,7 @@ func assertFloat64(exp float64) func(t *testing.T, actual interface{}) {
 	return func(t *testing.T, actual interface{}) {
 		t.Helper()
 
-		assert.Equal(t, exp, actual)
+		assert.InDelta(t, exp, actual, delta)
 	}
 }
 

pkg/middlewares/addprefix/add_prefix.go

@@ -2,7 +2,7 @@ package addprefix
 
 import (
 	"context"
-	"fmt"
+	"errors"
 	"net/http"
 
 	"github.com/opentracing/opentracing-go/ext"
@@ -35,7 +35,7 @@ func New(ctx context.Context, next http.Handler, config dynamic.AddPrefix, name
 			name:   name,
 		}
 	} else {
-		return nil, fmt.Errorf("prefix cannot be empty")
+		return nil, errors.New("prefix cannot be empty")
 	}
 
 	return result, nil

pkg/middlewares/customerrors/custom_errors_test.go

@@ -298,7 +298,7 @@ func TestNewResponseRecorder(t *testing.T) {
 			t.Parallel()
 
 			rec := newCodeModifier(test.rw, 0)
-			assert.IsType(t, rec, test.expected)
+			assert.IsType(t, test.expected, rec)
 		})
 	}
 }