Update drupol/php-conventions requirement from ^3.0.2 to ^4.0.4

Created by: dependabot[bot]

Updates the requirements on drupol/php-conventions to permit the latest version.

Changelog

Sourced from drupol/php-conventions's changelog.

4.0.4

Commits

• chore: Update filenames. 3e6e1e2
• chore: Update constraints for maglnet/composer-require-checker. b508e52

4.0.3 - 2021-04-21

Commits

• docs: Update Changelog. ff3eec5
• refactor: Update codebase based on License file. 8e61794
• chore: Update composer.json. 1282d4e

4.0.2 - 2021-04-21

Commits

• docs: Update changelog. 357dda4
• refactor: Update default header based. 1e3167c

4.0.1 - 2021-04-21

Commits

• docs: Update changelog. a2c6ea4
• refactor: Rename output file so it's pretty printed in Github by default. 31ee2ed

4.0.0 - 2021-04-21

Commits

• docs: Add changelog. 7a0803a
• refactor: Update code style. 44c29b5
• chore: Update static files. 434becc
• refactor: Add Psalm and License tasks. 7ae138f
• chore: Update composer.json. 6bbe607
• docs: Update README. a44d878
• chore: Add Docker stack for Changelog generation. 5037eab
• refactor: Remove unsupported PHP version. 53d1734

3.0.3 - 2021-04-06

Commits

• Enable cache config for PHP CS Fixer. bc07818

3.0.2 - 2021-02-09

... (truncated)

Commits

• 5ac82cf docs: Update Changelog.
• 3e6e1e2 chore: Update filenames.
• b508e52 chore: Update constraints for maglnet/composer-require-checker.
• ff3eec5 docs: Update Changelog.
• 8e61794 refactor: Update codebase based on License file.
• 1282d4e chore: Update composer.json.
• 357dda4 docs: Update changelog.
• 1e3167c refactor: Update default header based.
• a2c6ea4 docs: Update changelog.
• 31ee2ed refactor: Rename output file so it's pretty printed in Github by default.
• Additional commits viewable in compare view

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