[Snyk] Security upgrade gatsby from 5.13.6 to 5.14.4

[Mapuppy09]

Snyk has created this PR to fix 3 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json
• package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Uncaught Exception SNYK-JS-MULTER-10185673	828
	Uncaught Exception SNYK-JS-MULTER-10299078	746
	Missing Release of Memory after Effective Lifetime SNYK-JS-MULTER-10185675	721

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🦉 Uncaught Exception
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