Bump net-smtp from 0.3.1 to 0.3.2

Bumps [net-smtp](https://github.com/ruby/net-smtp) from 0.3.1 to 0.3.2.
- [Release notes](https://github.com/ruby/net-smtp/releases)
- [Changelog](https://github.com/ruby/net-smtp/blob/master/NEWS.md)
- [Commits](https://github.com/ruby/net-smtp/compare/v0.3.1...v0.3.2)

---
updated-dependencies:
- dependency-name: net-smtp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -315,10 +315,8 @@ GEM
       timeout
     net-protocol (0.1.3)
       timeout
-    net-smtp (0.3.1)
-      digest
+    net-smtp (0.3.2)
       net-protocol
-      timeout
     nio4r (2.5.8)
     nokogiri (1.13.8)
       mini_portile2 (~> 2.8.0)