[Snyk] Security upgrade activitystrea.ms from 2.1.3 to 3.1.0

[strugee]

Snyk has created this PR to fix 8 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Improper Input Validation SNYK-JS-XMLDOM-3092935	811
	Predictable Value Range from Previous Values SNYK-JS-FORMDATA-10841150	791
	Improper Verification of Cryptographic Signature SNYK-JS-ELLIPTIC-8187303	786
	Improper Verification of Cryptographic Signature SNYK-JS-ELLIPTIC-7577916	776
	Improper Verification of Cryptographic Signature SNYK-JS-ELLIPTIC-7577917	776
	Improper Verification of Cryptographic Signature SNYK-JS-ELLIPTIC-7577918	776
	Information Exposure SNYK-JS-ELLIPTIC-8720086	771
	Cryptographic Issues SNYK-JS-ELLIPTIC-571484	706

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[!IMPORTANT]

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Improper Input Validation 🦉 Cryptographic Issues