Bump underscore.string from 3.3.4 to 3.3.6

Bumps [underscore.string](https://github.com/epeli/underscore.string) from 3.3.4 to 3.3.6.
- [Release notes](https://github.com/epeli/underscore.string/releases)
- [Changelog](https://github.com/esamattis/underscore.string/blob/master/CHANGELOG.markdown)
- [Commits](esamattis/underscore.string@3.3.4...3.3.6)

---
updated-dependencies:
- dependency-name: underscore.string
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

yarn.lock

@@ -11166,7 +11166,7 @@ split-string@^3.0.1, split-string@^3.0.2:
   dependencies:
     extend-shallow "^3.0.0"
 
-sprintf-js@^1.0.3:
+sprintf-js@^1.1.1:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.1.2.tgz#da1765262bf8c0f571749f2ad6c26300207ae673"
   integrity sha512-VE0SOVEHCk7Qc8ulkWw3ntAzXuqf7S2lvwQaDLRnUeIEaKNQJzV6BwmLKhOqT61aGhfUMrXeaBk+oDGCzvhcug==
@@ -11446,7 +11446,6 @@ [email protected]:
 
 "test-generator-plugin@link:./tests/dummy/lib/test-generator-plugin":
   version "0.0.0"
-  uid ""
 
 testem@^2.14.0:
   version "2.17.0"
@@ -11717,19 +11716,12 @@ unbox-primitive@^1.0.2:
     has-symbols "^1.0.3"
     which-boxed-primitive "^1.0.2"
 
-underscore.string@^3.2.2:
-  version "3.3.4"
-  resolved "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.4.tgz#2c2a3f9f83e64762fdc45e6ceac65142864213db"
+underscore.string@^3.2.2, underscore.string@~3.3.4:
+  version "3.3.6"
+  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-3.3.6.tgz#ad8cf23d7423cb3b53b898476117588f4e2f9159"
+  integrity sha512-VoC83HWXmCrF6rgkyxS9GHv8W9Q5nhMKho+OadDJGzL2oDYbYEppBaCMH6pFlwLeqj2QS+hhkw2kpXkSdD1JxQ==
   dependencies:
-    sprintf-js "^1.0.3"
-    util-deprecate "^1.0.2"
-
-underscore.string@~3.3.4:
-  version "3.3.5"
-  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-3.3.5.tgz#fc2ad255b8bd309e239cbc5816fd23a9b7ea4023"
-  integrity sha512-g+dpmgn+XBneLmXXo+sGlW5xQEt4ErkS3mgeN2GFbremYeMBSJKr9Wf2KJplQVaiPY/f7FN6atosWYNm9ovrYg==
-  dependencies:
-    sprintf-js "^1.0.3"
+    sprintf-js "^1.1.1"
     util-deprecate "^1.0.2"
 
 underscore@>=1.8.3: