chore: Update Showcase to the latest released version, 0.16.0

[vchudnov-g]

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[codecov]

Codecov Report

Merging #918 (ab3defd) into master (7c185e8) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #918   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           26        27    +1     
  Lines         1608      1703   +95     
  Branches       328       347   +19     
=========================================
+ Hits          1608      1703   +95     

Impacted Files	Coverage Δ
gapic/samplegen_utils/types.py	100.00% <ø> (ø)
gapic/samplegen_utils/utils.py	100.00% <ø> (ø)
gapic/utils/case.py	100.00% <ø> (ø)
gapic/utils/reserved_names.py	100.00% <ø> (ø)
gapic/generator/generator.py	100.00% <100.00%> (ø)
gapic/samplegen/samplegen.py	100.00% <100.00%> (ø)
gapic/schema/api.py	100.00% <100.00%> (ø)
gapic/schema/metadata.py	100.00% <100.00%> (ø)
gapic/schema/wrappers.py	100.00% <100.00%> (ø)
gapic/utils/__init__.py	100.00% <100.00%> (ø)
... and 3 more

---

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[software-dov]

I think we can just delete the circleci configs instead of keeping them updated.

I'm very confused about the errors as well.

[arithmetic1728]

I think we can just delete the circleci configs instead of keeping them updated.

I'm very confused about the errors as well.

Yes, that works for me.

[vchudnov-g]

@software-dov @busunkim96 Do these sound like spurious failures? All checks passed before merging master....

[vchudnov-g]

So it looks like we're failing because the generated Showcase GAPIC has 0% code coverage, I guess because it doesn't have unit tests (?). I'm confused why this wasn't a problem before this PR.

Suggestions?

[software-dov]

Took a look at the failing CI, and I believe that the code cov failure is possibly a red herring. The tests definitely run locally, definitely run in CI, but the coverage isn't being tracked correctly.

[software-dov]

The update made it's way in via another PR. @vchudnov-g mind if we close this?

[vchudnov-g]

Yes. let's close this, since this was done in #925