[Snyk] Upgrade org.springframework:spring-core from 5.3.19 to 5.3.39

[cld-sec]

Snyk has created this PR to upgrade org.springframework:spring-core from 5.3.19 to 5.3.39.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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• The recommended version is 20 versions ahead of your current version.

• The recommended version was released on 4 months ago.

Issues fixed by the recommended upgrade:

	Issue	Score	Exploit Maturity
	Allocation of Resources Without Limits or Throttling SNYK-JAVA-ORGSPRINGFRAMEWORK-5422217	104	No Known Exploit
	Denial of Service (DoS) SNYK-JAVA-ORGSPRINGFRAMEWORK-7687447	104	No Known Exploit
	Allocation of Resources Without Limits or Throttling SNYK-JAVA-ORGSPRINGFRAMEWORK-7687446	104	No Known Exploit
	Improper Access Control SNYK-JAVA-ORGSPRINGFRAMEWORK-3369852	104	Proof of Concept
	Open Redirect SNYK-JAVA-ORGSPRINGFRAMEWORK-6261586	104	Proof of Concept
	Open Redirect SNYK-JAVA-ORGSPRINGFRAMEWORK-6444790	104	No Known Exploit
	Open Redirect SNYK-JAVA-ORGSPRINGFRAMEWORK-6597980	104	No Known Exploit
	Denial of Service (DoS) SNYK-JAVA-ORGSPRINGFRAMEWORK-2823313	104	No Known Exploit
	Allocation of Resources Without Limits or Throttling SNYK-JAVA-ORGSPRINGFRAMEWORK-3369749	104	No Known Exploit

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[!IMPORTANT]

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

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