chore: update golangci-lint to v2.13.0

Migrate the deprecated gofumpt `extra-rules` to `extra.group-params`, as
the alias now also enables the new `clothe-returns` and `balance-calls`
rules. Disable SA4023, which hangs on go 1.27, see
https://github.com/golangci/golangci-lint/issues/6732.

Apply the resulting modernize fixes, mostly flattening embedded struct
literals and switching errors.As to errors.AsType.

Assisted-by: Claude:Opus 5

cmd/admin.go

@@ -113,11 +113,9 @@ func runRepoSyncReleases(ctx context.Context, _ *cli.Command) error {
 	log.Trace("Synchronizing repository releases (this may take a while)")
 	for page := 1; ; page++ {
 		repos, count, err := repo_model.SearchRepositoryByName(ctx, repo_model.SearchRepoOptions{
-			ListOptions: db.ListOptions{
-				PageSize: repo_model.RepositoryListDefaultPageSize,
-				Page:     page,
-			},
-			Private: true,
+			PageSize: repo_model.RepositoryListDefaultPageSize,
+			Page:     page,
+			Private:  true,
 		})
 		if err != nil {
 			return fmt.Errorf("SearchRepositoryByName: %w", err)

cmd/hook.go

@@ -752,7 +752,7 @@ func writeFlushPktLine(ctx context.Context, out io.Writer) error {
 func writeDataPktLine(ctx context.Context, out io.Writer, data []byte) error {
 	hexchar := []byte("0123456789abcdef")
 	hex := func(n uint64) byte {
-		return hexchar[(n)&15]
+		return hexchar[n&15]
 	}
 
 	length := uint64(len(data) + 4)

cmd/migrate_storage_test.go

@@ -30,22 +30,18 @@ func TestMigratePackages(t *testing.T) {
 	defer buf.Close()
 
 	v, f, err := packages_service.CreatePackageAndAddFile(t.Context(), &packages_service.PackageCreationInfo{
-		PackageInfo: packages_service.PackageInfo{
-			Owner:       creator,
-			PackageType: packages.TypeGeneric,
-			Name:        "test",
-			Version:     "1.0.0",
-		},
+		Owner:             creator,
+		PackageType:       packages.TypeGeneric,
+		Name:              "test",
+		Version:           "1.0.0",
 		Creator:           creator,
 		SemverCompatible:  true,
 		VersionProperties: map[string]string{},
 	}, &packages_service.PackageFileCreationInfo{
-		PackageFileInfo: packages_service.PackageFileInfo{
-			Filename: "a.go",
-		},
-		Creator: creator,
-		Data:    buf,
-		IsLead:  true,
+		Filename: "a.go",
+		Creator:  creator,
+		Data:     buf,
+		IsLead:   true,
 	})
 	assert.NoError(t, err)
 	assert.NotNil(t, v)