deps: update dependency com.google.protobuf:protobuf-java to v3.12.0

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
com.google.protobuf:protobuf-java	minor	3.11.4 -> 3.12.0

---

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]

Codecov Report

Merging #161 into master will increase coverage by 0.38%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #161      +/-   ##
============================================
+ Coverage     70.69%   71.07%   +0.38%     
- Complexity      331      366      +35     
============================================
  Files            42       42              
  Lines          2692     2821     +129     
  Branches         15       38      +23     
============================================
+ Hits           1903     2005     +102     
- Misses          750      768      +18     
- Partials         39       48       +9     

Impacted Files	Coverage Δ	Complexity Δ
.../google/cloud/talent/v4beta1/JobServiceClient.java	56.18% <0.00%> (-1.53%)	38.00% <0.00%> (+7.00%)	⬇️
...gle/cloud/talent/v4beta1/CompanyServiceClient.java	52.17% <0.00%> (-1.40%)	22.00% <0.00%> (+4.00%)	⬇️
...ogle/cloud/talent/v4beta1/TenantServiceClient.java	59.25% <0.00%> (-0.75%)	22.00% <0.00%> (+4.00%)	⬇️
...gle/cloud/talent/v4beta1/ProfileServiceClient.java	65.34% <0.00%> (-0.62%)	24.00% <0.00%> (+4.00%)	⬇️
...oogle/cloud/talent/v4beta1/EventServiceClient.java	35.89% <0.00%> (-0.22%)	7.00% <0.00%> (+1.00%)	⬇️
...cloud/talent/v4beta1/ApplicationServiceClient.java	61.17% <0.00%> (+0.13%)	23.00% <0.00%> (+5.00%)
...ud/talent/v4beta1/stub/JobServiceStubSettings.java	83.65% <0.00%> (+0.18%)	22.00% <0.00%> (+1.00%)
...alent/v4beta1/stub/ProfileServiceStubSettings.java	79.48% <0.00%> (+0.40%)	16.00% <0.00%> (+1.00%)
.../cloud/talent/v4beta1/stub/GrpcJobServiceStub.java	94.67% <0.00%> (+0.44%)	18.00% <0.00%> (+1.00%)
...t/v4beta1/stub/ApplicationServiceStubSettings.java	80.45% <0.00%> (+0.45%)	15.00% <0.00%> (+1.00%)
... and 10 more

---

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 b49166f...866abad. Read the comment docs.