fix(deps): update dependency @google-cloud/common to v1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
@​google-cloud/common	dependencies	major	^0.32.1 -> ^1.0.0	source

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Release Notes

googleapis/nodejs-common

v1.0.0

Compare Source

Bug Fixes

• deps: update dependency @​google-cloud/projectify to v1 (#​414) (6cdc2fe)
• deps: update dependency @​google-cloud/promisify to v1 (#​415) (00c422a)
• deps: update dependency google-auth-library to v4 (#​422) (e0a94af)

Build System

• upgrade engines field to >=8.10.0 (#​412) (4349d68)

Miscellaneous Chores

• deps: update dependency gts to v1 (#​407) (8e73d8c)

BREAKING CHANGES

• deps: this will ship async/await in the generated code
• upgrade engines field to >=8.10.0 (#​412)

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[bcoe]

could we get away with dropping Node 6 from the testing matrix in circleci?

[codecov]

Codecov Report

Merging #1023 into master will increase coverage by 0.3%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master    #1023     +/-   ##
=========================================
+ Coverage    94.5%   94.81%   +0.3%     
=========================================
  Files          97       97             
  Lines        6150     6150             
  Branches      486      486             
=========================================
+ Hits         5812     5831     +19     
+ Misses        183      165     -18     
+ Partials      155      154      -1

Impacted Files	Coverage Δ
src/trace-writer.ts	92.43% <0%> (-1.69%)	⬇️
src/plugins/plugin-grpc.ts	86.02% <0%> (+1.07%)	⬆️
test/utils.ts	88.88% <0%> (+1.58%)	⬆️
src/plugins/plugin-hapi.ts	88.67% <0%> (+1.88%)	⬆️
src/plugins/plugin-mysql2.ts	75.67% <0%> (+2.7%)	⬆️
src/plugins/plugin-mysql.ts	97.29% <0%> (+2.7%)	⬆️
test/plugins/common.ts	95.52% <0%> (+2.98%)	⬆️
src/plugins/plugin-restify.ts	96.96% <0%> (+3.03%)	⬆️
src/plugins/plugin-http.ts	89.69% <0%> (+4.12%)	⬆️
src/plugins/plugin-express.ts	97.56% <0%> (+4.87%)	⬆️
... and 1 more

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[renovate]

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