config: enable azure snp version fetcher again + minimum age for latest version (#1899)

* fetch latest version when older than 2 weeks

* extend hack upload tool to pass an upload date

* Revert "config: disable user-facing version Azure SEV SNP fetch for v2.8  (#1882)"

This reverts commit c7b22d314a.

* fix tests

* use NewAzureSEVSNPVersionList for type guarantees

* Revert "use NewAzureSEVSNPVersionList for type guarantees"

This reverts commit 942566453f4b4a2b6dc16f8689248abf1dc47db4.

* assure list is sorted

* improve root.go style

* daniel feedback

internal/config/attestationversion_test.go

@@ -9,7 +9,6 @@ package config
 import (
 	"testing"
 
-	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"gopkg.in/yaml.v3"
 )
@@ -45,39 +44,3 @@ func TestVersionMarshalYAML(t *testing.T) {
 		})
 	}
 }
-
-func TestVersionUnmarshalYAML(t *testing.T) {
-	tests := []struct {
-		name      string
-		expected  AttestationVersion
-		yamlInput string
-		wantErr   bool
-	}{
-		// TODO(elchead): activate latest logic for next release AB#3036
-		{
-			name:      "latest value is not allowed",
-			expected:  AttestationVersion{},
-			yamlInput: "latest\n",
-			wantErr:   true,
-		},
-		{
-			name: "value 5 resolves to 5",
-			expected: AttestationVersion{
-				Value: 5,
-			},
-			yamlInput: "5\n",
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			sut := AttestationVersion{}
-			err := yaml.Unmarshal([]byte(tt.yamlInput), &sut)
-			if tt.wantErr {
-				assert.Error(t, err)
-				return
-			}
-			assert.NoError(t, err)
-			assert.Equal(t, tt.expected.IsLatest, sut.IsLatest)
-		})
-	}
-}