Rename Sync2 -> Sync (#26479)

The xorm `Sync2` has already been deprecated in favor of `Sync`,
so let's do the same inside the Gitea codebase.

Command used to replace everything:
```sh
for i in $(ag Sync2 --files-with-matches); do vim $i -c ':%sno/Sync2/Sync/g' -c ':wq'; done
```

models/migrations/v1_13/v140.go

@@ -33,8 +33,8 @@ func FixLanguageStatsToSaveSize(x *xorm.Engine) error {
 		IndexerType RepoIndexerType `xorm:"INDEX(s) NOT NULL DEFAULT 0"`
 	}
 
-	if err := x.Sync2(new(LanguageStat)); err != nil {
-		return fmt.Errorf("Sync2: %w", err)
+	if err := x.Sync(new(LanguageStat)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
 	}
 
 	x.Delete(&RepoIndexerStatus{IndexerType: RepoIndexerTypeStats})

models/migrations/v1_13/v141.go

@@ -14,8 +14,8 @@ func AddKeepActivityPrivateUserColumn(x *xorm.Engine) error {
 		KeepActivityPrivate bool `xorm:"NOT NULL DEFAULT false"`
 	}
 
-	if err := x.Sync2(new(User)); err != nil {
-		return fmt.Errorf("Sync2: %w", err)
+	if err := x.Sync(new(User)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
 	}
 	return nil
 }

models/migrations/v1_13/v145.go

@@ -17,7 +17,7 @@ func IncreaseLanguageField(x *xorm.Engine) error {
 		Language string `xorm:"VARCHAR(50) UNIQUE(s) INDEX NOT NULL"`
 	}
 
-	if err := x.Sync2(new(LanguageStat)); err != nil {
+	if err := x.Sync(new(LanguageStat)); err != nil {
 		return err
 	}
 

models/migrations/v1_13/v146.go

@@ -32,7 +32,7 @@ func AddProjectsInfo(x *xorm.Engine) error {
 		UpdatedUnix    timeutil.TimeStamp `xorm:"INDEX updated"`
 	}
 
-	if err := x.Sync2(new(Project)); err != nil {
+	if err := x.Sync(new(Project)); err != nil {
 		return err
 	}
 
@@ -41,7 +41,7 @@ func AddProjectsInfo(x *xorm.Engine) error {
 		ProjectID    int64
 	}
 
-	if err := x.Sync2(new(Comment)); err != nil {
+	if err := x.Sync(new(Comment)); err != nil {
 		return err
 	}
 
@@ -51,7 +51,7 @@ func AddProjectsInfo(x *xorm.Engine) error {
 		NumClosedProjects int `xorm:"NOT NULL DEFAULT 0"`
 	}
 
-	if err := x.Sync2(new(Repository)); err != nil {
+	if err := x.Sync(new(Repository)); err != nil {
 		return err
 	}
 
@@ -63,7 +63,7 @@ func AddProjectsInfo(x *xorm.Engine) error {
 		ProjectBoardID int64 `xorm:"INDEX"`
 	}
 
-	if err := x.Sync2(new(ProjectIssue)); err != nil {
+	if err := x.Sync(new(ProjectIssue)); err != nil {
 		return err
 	}
 
@@ -79,5 +79,5 @@ func AddProjectsInfo(x *xorm.Engine) error {
 		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
 	}
 
-	return x.Sync2(new(ProjectBoard))
+	return x.Sync(new(ProjectBoard))
 }

models/migrations/v1_13/v147.go

@@ -78,7 +78,7 @@ func CreateReviewsForCodeComments(x *xorm.Engine) error {
 		RefIsPull    bool
 	}
 
-	if err := x.Sync2(new(Review), new(Comment)); err != nil {
+	if err := x.Sync(new(Review), new(Comment)); err != nil {
 		return err
 	}
 

models/migrations/v1_13/v149.go

@@ -17,8 +17,8 @@ func AddCreatedAndUpdatedToMilestones(x *xorm.Engine) error {
 		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
 	}
 
-	if err := x.Sync2(new(Milestone)); err != nil {
-		return fmt.Errorf("Sync2: %w", err)
+	if err := x.Sync(new(Milestone)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
 	}
 	return nil
 }

models/migrations/v1_13/v151.go

@@ -77,14 +77,14 @@ func SetDefaultPasswordToArgon2(x *xorm.Engine) error {
 		type User struct {
 			PasswdHashAlgo string `xorm:"NOT NULL DEFAULT 'argon2'"`
 		}
-		return x.Sync2(new(User))
+		return x.Sync(new(User))
 	}
 	column := table.GetColumn("passwd_hash_algo")
 	if column == nil {
 		type User struct {
 			PasswdHashAlgo string `xorm:"NOT NULL DEFAULT 'argon2'"`
 		}
-		return x.Sync2(new(User))
+		return x.Sync(new(User))
 	}
 
 	tempTableName := "tmp_recreate__user"

models/migrations/v1_13/v152.go

@@ -9,5 +9,5 @@ func AddTrustModelToRepository(x *xorm.Engine) error {
 	type Repository struct {
 		TrustModel int
 	}
-	return x.Sync2(new(Repository))
+	return x.Sync(new(Repository))
 }

models/migrations/v1_13/v153.go

@@ -16,9 +16,9 @@ func AddTeamReviewRequestSupport(x *xorm.Engine) error {
 		AssigneeTeamID int64 `xorm:"NOT NULL DEFAULT 0"`
 	}
 
-	if err := x.Sync2(new(Review)); err != nil {
+	if err := x.Sync(new(Review)); err != nil {
 		return err
 	}
 
-	return x.Sync2(new(Comment))
+	return x.Sync(new(Comment))
 }

models/migrations/v1_13/v154.go

@@ -16,7 +16,7 @@ func AddTimeStamps(x *xorm.Engine) error {
 	type Star struct {
 		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
 	}
-	if err := x.Sync2(new(Star)); err != nil {
+	if err := x.Sync(new(Star)); err != nil {
 		return err
 	}
 
@@ -25,7 +25,7 @@ func AddTimeStamps(x *xorm.Engine) error {
 		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
 		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
 	}
-	if err := x.Sync2(new(Label)); err != nil {
+	if err := x.Sync(new(Label)); err != nil {
 		return err
 	}
 
@@ -33,7 +33,7 @@ func AddTimeStamps(x *xorm.Engine) error {
 	type Follow struct {
 		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
 	}
-	if err := x.Sync2(new(Follow)); err != nil {
+	if err := x.Sync(new(Follow)); err != nil {
 		return err
 	}
 
@@ -42,7 +42,7 @@ func AddTimeStamps(x *xorm.Engine) error {
 		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
 		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
 	}
-	if err := x.Sync2(new(Watch)); err != nil {
+	if err := x.Sync(new(Watch)); err != nil {
 		return err
 	}
 
@@ -51,5 +51,5 @@ func AddTimeStamps(x *xorm.Engine) error {
 		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
 		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
 	}
-	return x.Sync2(new(Collaboration))
+	return x.Sync(new(Collaboration))
 }