[Snyk] Fix for 7 vulnerabilities

[thcrnk]

Snyk has created this PR to fix 7 vulnerabilities in the maven dependencies of this project.

Snyk changed the following file(s):

• pom.xml

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score	Upgrade
	Allocation of Resources Without Limits or Throttling SNYK-JAVA-ORGSPRINGFRAMEWORK-5422217	539	org.springframework:spring-context: 3.2.4.RELEASE -> 6.1.14 org.springframework:spring-webmvc: 3.2.4.RELEASE -> 5.2.24.RELEASE Major version upgrade No Known Exploit
	Denial of Service (DoS) SNYK-JAVA-ORGSPRINGFRAMEWORK-2434828	479	org.springframework:spring-context: 3.2.4.RELEASE -> 6.1.14 org.springframework:spring-webmvc: 3.2.4.RELEASE -> 5.2.24.RELEASE Major version upgrade No Known Exploit
	Directory Traversal SNYK-JAVA-ORGSPRINGFRAMEWORK-31325	479	org.springframework:spring-context: 3.2.4.RELEASE -> 6.1.14 No Known Exploit
	Allocation of Resources Without Limits or Throttling SNYK-JAVA-ORGSPRINGFRAMEWORK-3369749	479	org.springframework:spring-context: 3.2.4.RELEASE -> 6.1.14 org.springframework:spring-webmvc: 3.2.4.RELEASE -> 5.2.24.RELEASE Major version upgrade No Known Exploit
	Improper Output Neutralization for Logs SNYK-JAVA-ORGSPRINGFRAMEWORK-2329097	429	org.springframework:spring-context: 3.2.4.RELEASE -> 6.1.14 Major version upgrade No Known Exploit
	Improper Input Validation SNYK-JAVA-ORGSPRINGFRAMEWORK-2330878	429	org.springframework:spring-context: 3.2.4.RELEASE -> 6.1.14 Major version upgrade No Known Exploit
	Improper Handling of Case Sensitivity SNYK-JAVA-ORGSPRINGFRAMEWORK-8230365	329	org.springframework:spring-context: 3.2.4.RELEASE -> 6.1.14 Major version upgrade No Known Exploit

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• Check the changes in this PR to ensure they won't cause issues with your project.
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🦉 Improper Output Neutralization for Logs
🦉 Directory Traversal
🦉 Denial of Service (DoS)
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