Update dependency jest to v25.5.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
jest (source)	devDependencies	patch	25.5.3 -> 25.5.4

---

Release Notes

facebook/jest

v25.5.4

Compare Source

Fixes

• [jest-jasmine2] Don't run beforeAll / afterAll in skipped describe blocks (#​9931)

Chore & Maintenance

• [jest-runtime] Do not warn when mutating require.cache (#​9946)

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by WhiteSource Renovate. View repository job log here.

[codecov-io]

Codecov Report

Merging #19 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #19   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines            6         6           
  Branches         4         4           
=========================================
  Hits             6         6           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b2ae640...1654261. Read the comment docs.