chore: upgrade .golangci.yml and workflow to v2

run `golangci-lint fmt`

Signed-off-by: Mohammed Al Sahaf <msaa1990@gmail.com>

modules/caddyhttp/metrics_test.go

@@ -9,8 +9,9 @@ import (
 	"sync"
 	"testing"
 
-	"github.com/caddyserver/caddy/v2"
 	"github.com/prometheus/client_golang/prometheus/testutil"
+
+	"github.com/caddyserver/caddy/v2"
 )
 
 func TestServerNameFromContext(t *testing.T) {

modules/caddyhttp/reverseproxy/upstreams_test.go

@@ -52,5 +52,4 @@ func TestResolveIpVersion(t *testing.T) {
 			t.Errorf("resolveIpVersion(): Expected %s got %s", test.expectedIpVersion, ipVersion)
 		}
 	}
-
 }

modules/caddyhttp/server_test.go

@@ -171,6 +171,7 @@ func BenchmarkServer_LogRequest_WithTrace(b *testing.B) {
 		s.logRequest(accLog, req, wrec, &duration, repl, bodyReader, false)
 	}
 }
+
 func TestServer_TrustedRealClientIP_NoTrustedHeaders(t *testing.T) {
 	req := httptest.NewRequest("GET", "/", nil)
 	req.RemoteAddr = "192.0.2.1:12345"