test(deps): update dependency elixir to v1.20.4 (main)

[renovate]

This PR contains the following updates:

Package	Update	Change
elixir	patch	1.20.3 → 1.20.4

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Release Notes

elixir-lang/elixir (elixir)

v1.20.4

Compare Source

1. Security

• [List] Avoid recursion when invalid charlists are given to List.to_string/1 or List.to_charlist/1 (CVE-2026-75758, GHSA-jf5q-v438-665c)

2. Bug fixes

Elixir

• [Base] Fix false positives in Base64 validation
• [Kernel] Fix inferred type of :erlang.split_binary/2 when given a bitstring
• [Kernel] Fix type checker crash on comprehensions with a non-returning :into expression
• [String] Fix final sigma handling in Greek casing
• [Task] Fix Task.yield_many/2 waiting indefinitely when :limit exceeds the task count

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.