chore(deps): update dependency dotenv to v8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
dotenv	dependencies	major	^7.0.0 -> ^8.0.0	source

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Release Notes

motdotla/dotenv

v8.0.0

Compare Source

• Drop support for Node v6 (#​392) (2e9636a), closes #​392

BREAKING CHANGES

• dropping Node v6 support because end-of-life

7.0.0 - 2019-03-12

Fixed

• Fix removing unbalanced quotes (#​376)

Removed

• Removed load alias for config for consistency throughout code and documentation.

6.2.0 - 2018-12-03

Added

• Support preload configuration via environment variables (#​351)

6.1.0 - 2018-10-08

Added

• debug option for config and parse methods will turn on logging

6.0.0 - 2018-06-02

Changed

• Breaking: drop support for Node v4 (#​304)

5.0.0 - 2018-01-29

Added

• Testing against Node v8 and v9
• Documentation on trim behavior of values
• Documentation on how to use with import

Changed

• Breaking: default path is now path.resolve(process.cwd(), '.env')
• Breaking: does not write over keys already in process.env if the key has a falsy value
• using const and let instead of var

Removed

• Testing against Node v7

4.0.0 - 2016-12-23

Changed

• Return Object with parsed content or error instead of false (#​165).

Removed

• verbose option removed in favor of returning result.

3.0.0 - 2016-12-20

Added

• verbose option will log any error messages. Off by default.
• parses email addresses correctly
• allow importing config method directly in ES6

Changed

• Suppress error messages by default (#​154)
• Ignoring more files for NPM to make package download smaller

Fixed

• False positive test due to case-sensitive variable (#​124)

Removed

• silent option removed in favor of verbose

2.0.0 - 2016-01-20

Added

• CHANGELOG to "make it easier for users and contributors to see precisely what notable changes have been made between each release". Linked to from README
• LICENSE to be more explicit about what was defined in package.json. Linked to from README
• Testing nodejs v4 on travis-ci
• added examples of how to use dotenv in different ways
• return parsed object on success rather than boolean true

Changed

• README has shorter description not referencing ruby gem since we don't have or want feature parity

Removed

• Variable expansion and escaping so environment variables are encouraged to be fully orthogonal

1.2.0 - 2015-06-20

Added

• Preload hook to require dotenv without including it in your code

Changed

• clarified license to be "BSD-2-Clause" in package.json

Fixed

• retain spaces in string vars

1.1.0 - 2015-03-31

Added

• Silent option to silence console.log when .env missing

1.0.0 - 2015-03-13

Removed

• support for multiple .env files. should always use one .env file for the current environment

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[trevor-scheer]

LGTM, only the language server depends on dotenv and LS is node >=8.
Only changes noted in changelog for dotenv v7->v8 are dropping support for node 6.