chore: update Francis to rc.2

Also replaces the direct use of the github.com/google/uuid package with the uuid package from the standard library in Go 1.27 (package remains as a transitive dep)

backend/internal/instanceid/instanceid.go

@@ -5,8 +5,8 @@ import (
 	"errors"
 	"fmt"
 	"time"
+	"uuid"
 
-	"github.com/google/uuid"
 	"gorm.io/gorm"
 )
 
@@ -14,7 +14,7 @@ import (
 // If no instance ID exists yet, a new one is generated and persisted atomically
 func Load(parentCtx context.Context, db *gorm.DB) (string, error) {
 	// Candidate value used only if there's no instance ID stored yet
-	newInstanceID := uuid.NewString()
+	newInstanceID := uuid.NewV4().String()
 
 	// We use a raw query because gorm can't build it for us in this atomic way
 	// The syntax is valid for both SQLite and Postgres

backend/internal/instanceid/instanceid_test.go

@@ -3,8 +3,8 @@ package instanceid
 import (
 	"sync"
 	"testing"
+	"uuid"
 
-	"github.com/google/uuid"
 	"github.com/stretchr/testify/require"
 	"gorm.io/gorm"
 
@@ -138,7 +138,7 @@ func TestMigrateFromAppConfig(t *testing.T) {
 	}
 
 	t.Run("moves an existing instance ID from app_config_variables into the kv table", func(t *testing.T) {
-		legacyID := uuid.NewString()
+		legacyID := uuid.NewV4().String()
 		db := testutils.NewDatabaseForTestWithMigrationSeed(t, versionBeforeMove, seedAppConfigInstanceID(legacyID))
 
 		// The migration should have copied the value into the kv table under the "instance_id" key
@@ -160,7 +160,7 @@ func TestMigrateFromAppConfig(t *testing.T) {
 	})
 
 	t.Run("keeps the existing kv value when both tables have an instance ID", func(t *testing.T) {
-		legacyID := uuid.NewString()
+		legacyID := uuid.NewV4().String()
 		db := testutils.NewDatabaseForTestWithMigrationSeed(t, versionBeforeMove, func(t *testing.T, db *gorm.DB) {
 			t.Helper()
 			// An instance ID is already present in the kv table before the move runs