vendor: update bbolt v1.3.4, zap v1.14.1

[gyuho]

@spzala @jingyih

https://github.com/etcd-io/bbolt/releases/tag/v1.3.4

[codecov-io]

Codecov Report

Merging #11709 into master will increase coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #11709      +/-   ##
==========================================
+ Coverage   66.52%   66.60%   +0.07%     
==========================================
  Files         403      403              
  Lines       36731    36731              
==========================================
+ Hits        24435    24463      +28     
+ Misses      10806    10772      -34     
- Partials     1490     1496       +6     

Impacted Files	Coverage Δ
auth/options.go	47.50% <0.00%> (-45.00%)	⬇️
etcdserver/api/v3rpc/util.go	51.61% <0.00%> (-16.13%)	⬇️
auth/simple_token.go	79.83% <0.00%> (-9.25%)	⬇️
pkg/netutil/netutil.go	61.47% <0.00%> (-7.38%)	⬇️
pkg/tlsutil/tlsutil.go	86.20% <0.00%> (-6.90%)	⬇️
clientv3/leasing/cache.go	87.22% <0.00%> (-4.45%)	⬇️
proxy/grpcproxy/watcher.go	89.79% <0.00%> (-4.09%)	⬇️
etcdserver/util.go	95.23% <0.00%> (-3.58%)	⬇️
clientv3/leasing/util.go	95.00% <0.00%> (-3.34%)	⬇️
etcdserver/api/v3rpc/watch.go	82.45% <0.00%> (-2.46%)	⬇️
... and 18 more

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[spzala]

Great, thanks @gyuho - lgtm
Only thing I can think of is Changelog update and I guess eventually we will bump to go 1.14 for CI.

[gyuho]

Will update CHANGELOG in the following PR.