Bump i18n-tasks from 0.9.21 to 0.9.25 (#8923)

Bumps [i18n-tasks](https://github.com/glebm/i18n-tasks) from 0.9.21 to 0.9.25.
- [Release notes](https://github.com/glebm/i18n-tasks/releases)
- [Changelog](https://github.com/glebm/i18n-tasks/blob/master/CHANGES.md)
- [Commits](https://github.com/glebm/i18n-tasks/compare/v0.9.21...v0.9.25)

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

Gemfile.lock

@@ -188,9 +188,6 @@ GEM
     dotenv-rails (2.2.2)
       dotenv (= 2.2.2)
       railties (>= 3.2, < 6.0)
-    easy_translate (0.5.1)
-      thread
-      thread_safe
     elasticsearch (6.0.2)
       elasticsearch-api (= 6.0.2)
       elasticsearch-transport (= 6.0.2)
@@ -255,7 +252,7 @@ GEM
     hashdiff (0.3.7)
     hashie (3.5.7)
     heapy (0.1.4)
-    highline (1.7.10)
+    highline (2.0.0)
     hiredis (0.6.1)
     hitimes (1.3.0)
     hkdf (0.3.0)
@@ -274,12 +271,11 @@ GEM
       rainbow (>= 2.0.0)
     i18n (1.1.0)
       concurrent-ruby (~> 1.0)
-    i18n-tasks (0.9.21)
+    i18n-tasks (0.9.25)
       activesupport (>= 4.0.2)
       ast (>= 2.1.0)
-      easy_translate (>= 0.5.1)
       erubi
-      highline (>= 1.7.3)
+      highline (>= 2.0.0)
       i18n
       parser (>= 2.2.3.0)
       rainbow (>= 2.2.2, < 4.0)
@@ -597,7 +593,6 @@ GEM
     terrapin (0.6.0)
       climate_control (>= 0.0.3, < 1.0)
     thor (0.20.0)
-    thread (0.2.2)
     thread_safe (0.3.6)
     tilt (2.0.8)
     timers (4.1.2)