Allow setting the updater image tag per project

server/Tingle.Dependabot/Migrations/20230824083425_InitialCreate.cs

@@ -45,6 +45,7 @@ protected override void Up(MigrationBuilder migrationBuilder)
                 AutoApprove_Enabled = table.Column<bool>(type: "bit", nullable: false),
                 Password = table.Column<string>(type: "nvarchar(450)", nullable: false),
                 Secrets = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                UpdaterImageTag = table.Column<string>(type: "nvarchar(max)", nullable: true),
                 GithubToken = table.Column<string>(type: "nvarchar(max)", nullable: true),
                 Location = table.Column<string>(type: "nvarchar(max)", nullable: true),
                 Synchronized = table.Column<DateTimeOffset>(type: "datetimeoffset", nullable: true),

server/Tingle.Dependabot/Migrations/MainDbContextModelSnapshot.cs

@@ -99,6 +99,9 @@ protected override void BuildModel(ModelBuilder modelBuilder)
                     b.Property<DateTimeOffset>("Updated")
                         .HasColumnType("datetimeoffset");
 
+                    b.Property<string>("UpdaterImageTag")
+                        .HasColumnType("nvarchar(max)");
+
                     b.Property<string>("Url")
                         .IsRequired()
                         .HasColumnType("nvarchar(max)");

server/Tingle.Dependabot/Models/Management/Project.cs

@@ -65,9 +65,17 @@ public class Project
     [JsonIgnore] // expose this once we know how to protect the values
     public Dictionary<string, string> Secrets { get; set; } = new(StringComparer.OrdinalIgnoreCase);
 
+    /// <summary>
+    /// Version of the updater docker container images to use.
+    /// If no value is provided, the default version is used.
+    /// Providing a value allows to test new feature just for the project.
+    /// </summary>
+    /// <example>1.20</example>
+    public string? UpdaterImageTag { get; set; }
+
     /// <summary>
     /// Token for accessing GitHub APIs.
-    /// If no value is provided, the a default token is used.
+    /// If no value is provided, a default token is used.
     /// Providing a value avoids being rate limited in case when there
     /// are many calls at the same time from the same IP.
     /// When provided, it must have <c>read</c> access to public repositories.