Maintenance: Update dependency terser to v1.1.18

Gemfile.lock

@@ -580,7 +580,7 @@ GEM
       faraday-multipart (~> 1.0)
       zeitwerk (~> 2.6)
     telephone_number (1.4.20)
-    terser (1.1.17)
+    terser (1.1.18)
       execjs (>= 0.3.0, < 3)
     test-unit (3.6.1)
       power_assert