Bump phaser justatin555

[JustATin555]

Description

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Code quality improvements

How to test

• yarn test all tests passed
• yarn start loads and story chapters can be entered
• Tested with actual Source Academy chapters

Checklist

• I have tested this code
• I have updated the documentation

[RichDom2185]

Don't do this, ! should only be used if you are absolutely sure it exists, so the comments are redundant.

Instead, either justify in the comments why you are absolutely sure it exists, or trust TS and use a guard (refer to what I had wrote last time in https://github.com/source-academy/frontend/pull/2940/files#diff-ab85a8652b937231da028317f53a4b2413b3833e76a7bb077c41c1011b9f47fe)

[RichDom2185]

Supersedes #2940

[JustATin555]

Will redo with merged commit from GM Hartin Menz.

[coveralls]

Pull Request Test Coverage Report for Build 13135268057

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 31.196%

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Totals
Change from base Build 13133948412:	0.0%
Covered Lines:	4842
Relevant Lines:	14646

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💛 - Coveralls