Update module github.com/hashicorp/memberlist to v0.2.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/hashicorp/memberlist	require	patch	v0.2.2 -> v0.2.3

---

Release Notes

hashicorp/memberlist

v0.2.3

Compare Source

---

Configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ 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 has been generated by WhiteSource Renovate. View repository job log here.

[codecov]

Codecov Report

Merging #19 (26c0850) into master (b12d1ef) will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master     #19   +/-   ##
======================================
  Coverage    84.8%   84.8%           
======================================
  Files           1       1           
  Lines          66      66           
======================================
  Hits           56      56           
  Misses          5       5           
  Partials        5       5