chore: Replace github.com/pkg/errors with Go core error package

frontend.go

@@ -2,11 +2,11 @@ package httpcache
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"time"
 
 	"flamingo.me/flamingo/v3/framework/flamingo"
-	"github.com/pkg/errors"
 	"go.opencensus.io/trace"
 	"golang.org/x/sync/singleflight"
 )
@@ -114,12 +114,14 @@ func (f *Frontend) load(ctx context.Context, key string, loader HTTPLoader) (Ent
 		defer fetchRoutineSpan.End()
 
 		defer func() {
+			// catch potential panics
 			if err := recover(); err != nil {
-				if err2, ok := err.(error); ok {
-					resultErr = errors.WithStack(err2)
-				} else {
-					resultErr = errors.WithStack(errors.Errorf("HTTPCache Frontend.load exception: %#v", err))
+				if typedError, ok := err.(error); ok {
+					resultErr = typedError
+					return
 				}
+
+				resultErr = fmt.Errorf("HTTPCache Frontend.load exception: %#v", err)
 			}
 		}()
 

go.mod

@@ -9,7 +9,6 @@ require (
 	flamingo.me/flamingo/v3 v3.9.0
 	github.com/gomodule/redigo v1.9.2
 	github.com/hashicorp/golang-lru/v2 v2.0.7
-	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.9.0
 	github.com/testcontainers/testcontainers-go v0.32.0
 	go.opencensus.io v0.24.0
@@ -36,7 +35,6 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/distribution/reference v0.6.0 // indirect
-	github.com/docker/distribution v2.8.2+incompatible // indirect
 	github.com/docker/docker v27.0.3+incompatible // indirect
 	github.com/docker/go-connections v0.5.0 // indirect
 	github.com/docker/go-units v0.5.0 // indirect
@@ -67,8 +65,8 @@ require (
 	github.com/mpvl/unique v0.0.0-20150818121801-cbe035fff7de // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.0 // indirect
-	github.com/opencontainers/runc v1.1.12 // indirect
 	github.com/openzipkin/zipkin-go v0.4.3 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/prometheus/client_golang v1.14.0 // indirect
@@ -94,12 +92,9 @@ require (
 	go.opentelemetry.io/otel/metric v1.24.0 // indirect
 	go.opentelemetry.io/otel/trace v1.24.0 // indirect
 	golang.org/x/crypto v0.25.0 // indirect
-	golang.org/x/exp v0.0.0-20230510235704-dd950f8aeaea // indirect
-	golang.org/x/mod v0.17.0 // indirect
 	golang.org/x/net v0.27.0 // indirect
 	golang.org/x/sys v0.22.0 // indirect
 	golang.org/x/text v0.16.0 // indirect
-	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
 	golang.org/x/xerrors v0.0.0-20220609144429-65e65417b02f // indirect
 	google.golang.org/api v0.84.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240415180920-8c6c420018be // indirect