Bump tzinfo-data from 1.2020.4 to 1.2020.5 (#15448)

Bumps [tzinfo-data](https://github.com/tzinfo/tzinfo-data) from 1.2020.4 to 1.2020.5.
- [Release notes](https://github.com/tzinfo/tzinfo-data/releases)
- [Commits](https://github.com/tzinfo/tzinfo-data/compare/v1.2020.4...v1.2020.5)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -636,9 +636,9 @@ GEM
     tty-screen (0.8.1)
     twitter-text (1.14.7)
       unf (~> 0.1.0)
-    tzinfo (1.2.8)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
-    tzinfo-data (1.2020.4)
+    tzinfo-data (1.2020.5)
       tzinfo (>= 1.0.0)
     unf (0.1.4)
       unf_ext