chore: release 2.0.0

[release-please]

🤖 I have created a release *beep* *boop*

2.0.0 (2020-05-08)

⚠ BREAKING CHANGES

• Drop support for TimeSeriesQueryLanguageCondition as an alert condition type
• The library now supports Node.js v10+. The last version to support Node.js v8 is tagged legacy-8 on NPM.
• monitoring convert to typescript (feat!: monitoring convert to typescript #360)

Features

• deferred client initialization (#378) (61eca6a)
• drop node8 support, support for async iterators (#396) (d65e8fb)
• export protos in src/index.ts (#369) (b0af4b1)
• monitoring convert to typescript (#360) (5bbd963)
• refresh monitoring client libraries (#401) (efd6e6f)
• Update public client library for Cloud Monitoring to introduce new Uptime check feature. Uptime HTTP(S) checks can now be GET or POST (#425) (103afde)

Bug Fixes

• regen protos and tests, formatting (#429) (9e6afc8)
• remove eslint, update gax, fix generated protos, run the generator (#415) (ed8d95e)
• synth.py clean up for multiple version (#431) (4e0e5bb)
• updated proto files with new proto annotations (cf8cc77)

Code Refactoring

• Drop support for TimeSeriesQueryLanguageCondition as an alert condition type (866c028)

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This PR was generated with Release Please.

[bcoe]

currently waiting on Node 10 GA.

[codecov]

Codecov Report

Merging #377 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #377   +/-   ##
=======================================
  Coverage   98.56%   98.56%           
=======================================
  Files           8        8           
  Lines       16068    16068           
  Branches      392      392           
=======================================
  Hits        15837    15837           
  Misses        225      225           
  Partials        6        6           

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[yoshi-automation]

Release is at https://github.com/googleapis/nodejs-monitoring/releases/tag/v2.0.0