Octokit doesn't have dispatch event we want?

Build/Build.csproj

@@ -7,7 +7,6 @@
   <ItemGroup>
     <PackageReference Include="Bullseye" Version="5.0.0"/>
     <PackageReference Include="Glob" Version="1.1.9" />
-    <PackageReference Include="Octokit" Version="11.0.1" />
     <PackageReference Include="SimpleExec"  Version="12.0.0"/>
   </ItemGroup>
 </Project>

Build/Github.cs

@@ -1,25 +1,34 @@
-using System.Collections.Generic;
+using System;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Net.Mime;
+using System.Text.Json;
 using System.Threading.Tasks;
-using Octokit;
-using Octokit.Internal;
 
 namespace Build;
 
 public static class Github
 {
-  private static GitHubClient GetClient(string secret) =>
-    new(new ProductHeaderValue("Speckle.build"), new InMemoryCredentialStore(new Credentials(secret)));
-
   public static async Task BuildInstallers(string secret, string runId)
   {
-    var client = GetClient(secret);
-    await client.Actions.Workflows
-      .CreateDispatch(
-        "specklesystems",
-        "connector-installers",
-        "build_installers.yml",
-        new CreateWorkflowDispatch("main") { Inputs = new Dictionary<string, object>() { { "run_id", runId } } }
-      )
-      .ConfigureAwait(false);
+    using var client = new HttpClient();
+    var payload = new { event_type = "build-installers", client_payload = new { run_id = runId } };
+    var content = new StringContent(
+      JsonSerializer.Serialize(payload),
+      new MediaTypeHeaderValue(MediaTypeNames.Application.Json)
+    );
+
+    var request = new HttpRequestMessage()
+    {
+      RequestUri = new Uri("https://api.github.com/repos/specklesystems/connector-installers/dispatches"),
+      Headers = { Authorization = new AuthenticationHeaderValue($"Bearer {secret}") },
+      Content = content
+    };
+    request.Headers.Add("X-GitHub-Api-Version", "2022-11-28");
+    var response = await client.SendAsync(request).ConfigureAwait(false);
+    if (!response.IsSuccessStatusCode)
+    {
+      throw new InvalidOperationException(response.StatusCode + response.ReasonPhrase);
+    }
   }
 }

Build/packages.lock.json

@@ -14,12 +14,6 @@
         "resolved": "1.1.9",
         "contentHash": "AfK5+ECWYTP7G3AAdnU8IfVj+QpGjrh9GC2mpdcJzCvtQ4pnerAGwHsxJ9D4/RnhDUz2DSzd951O/lQjQby2Sw=="
       },
-      "Octokit": {
-        "type": "Direct",
-        "requested": "[11.0.1, )",
-        "resolved": "11.0.1",
-        "contentHash": "fpwF/DxMJyGS+pIXDKQozx0wCIpOfG8VDr10ls+m9Gn9Lz8GslhhApxkKD9JCNO60HRUeMJsedsAS24gCjTD7Q=="
-      },
       "SimpleExec": {
         "type": "Direct",
         "requested": "[12.0.0, )",