deps: update dependency com.google.api:gax-bom to v1.49.1

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
com.google.api:gax-bom (source)	patch	1.49.0 -> 1.49.1

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Release Notes

googleapis/gax-java

v1.49.1

Compare Source

10-21-2019 08:14 PDT

Implementation Changes

• Fix InstantiatingGrpcChannelProvider's channel pool to play nicely with DirectPath (#​798)

Dependencies

• Update google-auth-library to 0.18.0 (#​801)

Internal / Testing Changes

• Fix Bazel 1.0.0 incompatibility issue. (#​803)
• update travis to trusty (#​799)
• Bump next snapshot (#​797)

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[codecov]

Codecov Report

Merging #65 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #65   +/-   ##
=========================================
  Coverage     66.43%   66.43%           
  Complexity      367      367           
=========================================
  Files            34       34           
  Lines          1865     1865           
  Branches        236      236           
=========================================
  Hits           1239     1239           
  Misses          524      524           
  Partials        102      102

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