Bump net-pop from 0.1.1 to 0.1.2

Bumps [net-pop](https://github.com/ruby/net-pop) from 0.1.1 to 0.1.2.
- [Release notes](https://github.com/ruby/net-pop/releases)
- [Commits](https://github.com/ruby/net-pop/compare/v0.1.1...v0.1.2)

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

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

Gemfile.lock

@@ -264,10 +264,8 @@ GEM
       digest
       net-protocol
       strscan
-    net-pop (0.1.1)
-      digest
+    net-pop (0.1.2)
       net-protocol
-      timeout
     net-protocol (0.1.3)
       timeout
     net-smtp (0.3.1)