chore: release 0.8.0

[release-please]

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

0.8.0 (2021-04-27)

Features

• add confidence field to the PageAnchor.PageRef in document.proto (#450) (2843a9d)
• add confidence field to the PageAnchor.PageRef in document.proto (#453) (2d0772e)

Dependencies

• update dependency com.google.cloud:google-cloud-shared-dependencies to v1 (#452) (952106e)
• update dependency com.google.cloud:google-cloud-storage to v1.113.16 (#454) (ce87c21)

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[codecov]

Codecov Report

Merging #451 (6fae402) into master (ce87c21) will not change coverage.
The diff coverage is n/a.

❗ Current head 6fae402 differs from pull request most recent head 7a753fd. Consider uploading reports for the commit 7a753fd to get more accurate results

@@            Coverage Diff            @@
##             master     #451   +/-   ##
=========================================
  Coverage     69.35%   69.35%           
  Complexity      173      173           
=========================================
  Files            24       24           
  Lines          1201     1201           
  Branches          6        6           
=========================================
  Hits            833      833           
  Misses          354      354           
  Partials         14       14           

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[yoshi-automation]

🤖 Release is at https://github.com/googleapis/java-document-ai/releases/tag/v0.8.0 🌻

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The release build has started, the log can be viewed here. 🌻

[release-tool-publish-reporter]

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