Update dependency erlang to v28.4 (#679)

renovate[bot] · web-flow · commit 77ba2f9f256b · 2026-03-04T16:24:16.000+01:00
Co-authored-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
diff --git a/.tool-versions b/.tool-versions
@@ -1,2 +1,2 @@
-erlang 28.3.3
+erlang 28.4
 elixir 1.19.5
