Update dependency codecov to v3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
codecov	2.3.1 -> 3.8.2

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Release Notes

codecov/codecov-node

v3.8.2

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Fixes

• #​304 Add coverage-final.json as a possible coverage file during file lookup

v3.8.1

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Fixes

• #​246 Revert "Bump teeny-request from 6.0.1 to 7.0.0"

v3.8.0

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Features

• #​160 Add Github Actions support

Fixes

• #​173 Fix broken gcov command
• #​195 Update Node testing versions
• #​200 Remove flaky tests
• #​204 Create CHANGELOG and remove flaky v4 test
• #​208 Add license scan report and status
• #​220 Remove errant bitly

Dependencies

• #​189 Bump lint-staged from 10.0.7 to 10.2.11
• #​190 [Security] Bump handlebars from 4.5.3 to 4.7.6
• #​191 Bump prettier from 1.19.1 to 2.0.5
• #​192 Bump mock-fs from 4.10.4 to 4.12.0
• #​196 Bump teeny-request from 6.0.1 to 7.0.0
• #​197 Bump eslint-config-prettier from 4.3.0 to 6.11.0
• #​198 Bump js-yaml from 3.13.1 to 3.14.0
• #​199 Bump husky from 4.2.1 to 4.2.5
• #​202 Bump eslint from 5.16.0 to 7.7.0
• #​203 Bump jest from 24.9.0 to 26.4.1
• #​205 Bump mock-fs from 4.12.0 to 4.13.0
• #​206 Bump jest from 26.4.1 to 26.4.2
• #​207 Bump prettier from 2.0.5 to 2.1.0
• #​209 Bump lint-staged from 10.2.11 to 10.2.13
• #​210 Bump prettier from 2.1.0 to 2.1.1
• #​212 Bump eslint from 7.7.0 to 7.8.1
• #​214 Bump lint-staged from 10.2.13 to 10.3.0
• #​215 Bump husky from 4.2.5 to 4.3.0
• #​216 Bump node-fetch from 2.6.0 to 2.6.1
• #​217 Bump eslint from 7.8.1 to 7.9.0
• #​218 Bump prettier from 2.1.1 to 2.1.2
• #​219 Bump lint-staged from 10.3.0 to 10.4.0
• #​222 Bump eslint-config-prettier from 6.11.0 to 6.12.0
• #​223 Bump eslint from 7.9.0 to 7.10.0
• #​224 Bump teeny-request from 7.0.0 to 7.0.1

v3.7.2

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• Fix issue with network and file finding

v3.7.1

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• Move to execFileSync and security fixes

v3.7.0

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• Remove the X-Amz-Acl: public-read header

v3.6.5

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v3.6.4

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• Fix Cirrus CI

v3.6.3

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• Fix for AWS Codebuild & package updates

v3.6.2

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• Command line args sanitized fix

v3.6.1

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• Fix for Semaphore

v3.6.0

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• Added AWS CodeBuild and Semaphore2

v3.5.0

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• Added TeamCity support

v3.4.0

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• Added Heroku CI support

v3.3.0

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• Added pipe with --pipe, -l

v3.2.0

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• Added azure pipelines
  .

v3.1.0

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• Custom yaml file. Allow codecov token from yml file.

v3.0.4

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• Security fixes

v3.0.3

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• Support non-git/hg root dirs

v3.0.2

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• Security fixes

v3.0.1

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• Security fixes

v3.0.0

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• No longer supports node v0.12 because of new version of request

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