feat(contributions): add ‹centpkg› contribution

Signed-off-by: Matej Focko <me@mfocko.xyz>

src/pages/contributions.tsx

@@ -6,6 +6,17 @@ import Contribution, {
 } from "../components/contributions/Contribution";
 
 const contributions: ContributionMetadata[] = [
+  {
+    title: "centpkg",
+    description: <p>A tool for working with CentOS dist-git.</p>,
+    contribution: (
+      <p>
+        I have fixed a bug that caused <code>centpkg-sig</code> to be unable to
+        clone the dist-git repos from SIGs.
+      </p>
+    ),
+    repoURL: "https://git.centos.org/centos/centpkg",
+  },
   {
     title: "Fedora Messaging",
     description: (