fix(pkg): errorlint linter

#### Description

errorlint linter in pkg

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

pkg/action/package_test.go

@@ -17,6 +17,7 @@ limitations under the License.
 package action
 
 import (
+	"errors"
 	"os"
 	"path"
 	"testing"
@@ -146,7 +147,7 @@ func TestValidateVersion(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			if err := validateVersion(tt.args.ver); err != nil {
-				if err != tt.wantErr {
+				if !errors.Is(err, tt.wantErr) {
 					t.Errorf("Expected {%v}, got {%v}", tt.wantErr, err)
 				}
 

pkg/cmd/upgrade.go

@@ -18,6 +18,7 @@ package cmd
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"log"
@@ -124,7 +125,7 @@ func newUpgradeCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 				histClient := action.NewHistory(cfg)
 				histClient.Max = 1
 				versions, err := histClient.Run(args[0])
-				if err == driver.ErrReleaseNotFound || isReleaseUninstalled(versions) {
+				if errors.Is(err, driver.ErrReleaseNotFound) || isReleaseUninstalled(versions) {
 					// Only print this to stdout for table output
 					if outfmt == output.Table {
 						fmt.Fprintf(out, "Release %q does not exist. Installing it now.\n", args[0])

pkg/downloader/chart_downloader_test.go

@@ -18,6 +18,7 @@ package downloader
 import (
 	"crypto/sha256"
 	"encoding/hex"
+	"errors"
 	"os"
 	"path/filepath"
 	"testing"
@@ -376,7 +377,7 @@ func TestScanReposForURL(t *testing.T) {
 
 	// A lookup failure should produce an ErrNoOwnerRepo
 	u = "https://no.such.repo/foo/bar-1.23.4.tgz"
-	if _, err = c.scanReposForURL(u, rf); err != ErrNoOwnerRepo {
+	if _, err = c.scanReposForURL(u, rf); !errors.Is(err, ErrNoOwnerRepo) {
 		t.Fatalf("expected ErrNoOwnerRepo, got %v", err)
 	}
 }

pkg/repo/v1/index_test.go

@@ -20,6 +20,7 @@ import (
 	"bufio"
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/http"
 	"os"
@@ -639,7 +640,7 @@ func TestIgnoreSkippableChartValidationError(t *testing.T) {
 				return
 			}
 
-			if tc.Input != result {
+			if !errors.Is(tc.Input, result) {
 				t.Error("expected the result equal to input")
 			}
 

pkg/storage/driver/sql_test.go

@@ -15,6 +15,7 @@ package driver
 
 import (
 	"database/sql/driver"
+	"errors"
 	"fmt"
 	"reflect"
 	"regexp"
@@ -447,7 +448,7 @@ func TestSqlQuery(t *testing.T) {
 	_, err := sqlDriver.Query(labelSetUnknown)
 	if err == nil {
 		t.Errorf("Expected error {%v}, got nil", ErrReleaseNotFound)
-	} else if err != ErrReleaseNotFound {
+	} else if !errors.Is(err, ErrReleaseNotFound) {
 		t.Fatalf("failed to query for unknown smug-pigeon release: %v", err)
 	}