Fix //third_party/quic/core:quic_connection_test with randomized flags

One test does not set/check all involved flags and so fails when flags are flipped randomly, which is a new build mode we are introducing:
```
blaze test //third_party/quic/core:quic_connection_test \
--test_arg=--gfe2_invert_all_feature_flags_for_test=true \
--test_arg=--gfe2_feature_flags_randomize_for_test=random
```

Passes with the fix: http://sponge2/14c9e09d-c2cf-4166-82dc-95f2b6e3edac

PiperOrigin-RevId: 334141583
Change-Id: Id7bd2572a87f2937d397d0eaa95f23a106147bac
1 file changed
tree: f75920895e47b67c1400f2c0772e751dc16dfe05
  1. common/
  2. epoll_server/
  3. http2/
  4. quic/
  5. spdy/
  6. CONTRIBUTING.md
  7. LICENSE
  8. README.md
README.md

QUICHE

QUICHE (QUIC, Http/2, Etc) is Google‘s implementation of QUIC and related protocols. It powers Chromium as well as Google’s QUIC servers and some other projects.