test: adds dispatch to integration repo

[amagyar-iohk]

Description:

• Add dispatch to identus-integration repository
• Upgrades serenity-js dependency to be compatible with node 20

Checklist:

• My PR follows the contribution guidelines of this project
• My PR is free of third-party dependencies that don't comply with the Allowlist
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have checked the PR title to follow the conventional commit specification

[github-actions]

Lines	Statements	Branches	Functions
	76.36% (3544/4641)	66.45% (1545/2325)	79.98% (855/1069)

[coveralls]

Pull Request Test Coverage Report for Build 11071670889

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 72.847%

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Totals
Change from base Build 10991062478:	0.0%
Covered Lines:	3437
Relevant Lines:	4514

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💛 - Coveralls