Merge pull request #6566 from NHSDigital/dependabot/bundler/next/phonelib-0.10.18

Author: thomasleese

Gemfile.lock

@@ -560,7 +560,7 @@ GEM
       racc
     pg (1.6.3-arm64-darwin)
     pg (1.6.3-x86_64-linux)
-    phonelib (0.10.17)
+    phonelib (0.10.18)
     pp (0.6.3)
       prettyprint
     prettier_print (1.2.1)