Add check for uncommitted changes before staging

Ensure that there are changes to commit by checking repository status before staging files. This prevents unnecessary commit attempts when the repository is clean.

src/DependencyUpdated.Repositories.AzureDevOps/AzureDevOps.cs

@@ -58,6 +58,14 @@ public void CommitChanges(string repositoryPath, string projectName, string grou
         var gitBranchName = CreateGitBranchName(projectName, config.Value.AzureDevOps.BranchName, group);
         logger.Information("Commiting {Repository} to branch {Branch}", repositoryPath, gitBranchName);
         using var repo = new Repository(repositoryPath);
+
+        var changes = repo.RetrieveStatus(new StatusOptions() { IncludeUntracked = true });
+        if (!changes.IsDirty)
+        {
+            logger.Information("Na changes to commit");
+            return;
+        }
+
         Commands.Stage(repo, "*");
         var author = new Signature(config.Value.AzureDevOps.Username, config.Value.AzureDevOps.Email,
             timeProvider.GetUtcNow());