refactor(dp): replace deprecated errors module (#12727)

Replace functions `errors.Wrap` and `errors.Wrapf` from the
github.com/pgk/errors package with `fmt.Errorsf`. Created in pairing
with Moritz Huebner.

Signed-off-by: Sebastian Wolf <sebastian.wolf@tngtech.com>

dp/cloud/go/go.mod

@@ -31,7 +31,6 @@ require (
 	github.com/golang/protobuf v1.5.2
 	github.com/labstack/echo v3.3.10+incompatible
 	github.com/olivere/elastic/v7 v7.0.6
-	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.7.0
 	google.golang.org/grpc v1.43.0
 	google.golang.org/protobuf v1.28.0
@@ -76,6 +75,7 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/oklog/ulid v1.3.1 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_golang v1.5.1 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect

dp/cloud/go/services/dp/servicers/cbsd_manager.go

@@ -16,9 +16,9 @@ package servicers
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"time"
 
-	"github.com/pkg/errors"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 
@@ -195,7 +195,7 @@ func cbsdFromDatabase(data *storage.DetailedCbsd, inactivityInterval time.Durati
 }
 
 func makeErr(err error, wrap string) error {
-	e := errors.Wrap(err, wrap)
+	e := fmt.Errorf(wrap+": %w", err)
 	code := codes.Internal
 	if err == merrors.ErrNotFound {
 		code = codes.NotFound