fix(deps): update dependency @google-cloud/pubsub to v2

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
@google-cloud/pubsub	dependencies	major	^1.0.0 -> ^2.0.0
@google-cloud/pubsub	devDependencies	major	^1.0.0 -> ^2.0.0

---

Release Notes

googleapis/nodejs-pubsub

v2.0.0

Compare Source

Please note that Node 8 is no longer supported, and Node 10 is the new minimum version of the runtime.

⚠ BREAKING CHANGES

• Please note that Node 8 is no longer supported, and Node 10 is the new minimum version of the runtime.
• drop support for custom promises (#​970)
• convert to typescript (#​923)
• deps: update dependency @​google-cloud/projectify to v2 (#​929)

Bug Fixes

• docs: link to correct gaxOptions docs (#​999) (312e318)
• regen protos and tests, formatting (#​991) (e350b97)
• remove eslint, update gax, fix generated protos, run the generator (#​955) (544a061)
• remove unused dependencies (#​998) (7b242a3)
• close: ensure in-flight messages are drained (#​952) (93a2bd7)
• deps: update dependency @​google-cloud/paginator to v3 (#​931) (b621854)
• deps: update dependency @​google-cloud/precise-date to v2 (#​934) (72b8d78)
• deps: update dependency @​google-cloud/projectify to v2 (#​929) (45d9880)
• deps: update dependency @​google-cloud/promisify to v2 (#​928) (3819877)
• deps: update dependency google-auth-library to v6 (#​935) (73fc887)

Build System

• convert to typescript (#​923) (2fc68ba)

Miscellaneous Chores

• drop support for custom promises (#​970) (df462d3)

1.7.1 (2020-04-06)

Bug Fixes

• provide missing close() method in the generated gapic client (#​941) (6bf8f14)

---

Renovate configuration

📅 Schedule: "after 9am and before 3pm" (UTC).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by WhiteSource Renovate. View repository job log here.

[codecov]

Codecov Report

Merging #1201 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1201   +/-   ##
=======================================
  Coverage   99.18%   99.18%           
=======================================
  Files          12       12           
  Lines       11471    11471           
  Branches      597      530   -67     
=======================================
  Hits        11377    11377           
  Misses         94       94           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 78e4878...5c731e7. Read the comment docs.

[forking-renovate]

PR has been edited

👷 This PR has received other commits, so Renovate will stop updating it to avoid conflicts or other problems. If you wish to abandon your changes and have Renovate start over you may click the "rebase" checkbox in the PR body/description.