Bump cross-env from 7.0.2 to 7.0.3

Created by: dependabot[bot]

Bumps cross-env from 7.0.2 to 7.0.3.

Release notes

Sourced from cross-env's releases.

v7.0.3

7.0.3 (2020-12-01)

Bug Fixes

• add maintenance mode notice (fe80c84)

Commits

• bb0287b docs: add dsbert as a contributor (#260)
• 6f571e1 docs: Update README.md (#259)
• fe80c84 fix: add maintenance mode notice
• 07a91d6 chore: Update validate.yml (#255)
• b2a610b chore(validate): Filter out all-contributors branches (#254)
• 54eec15 chore: only run push jobs on releasable branches (#253)
• 8edd827 chore: Switch to GitHub Actions (#251)
• ed844af docs: add devuxer as a contributor (#241)
• bddb4d5 docs: add multi vars example to README (#240)
• 9a5a9bd chore: Only release on original repo (#237)
• Additional commits viewable in compare view

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