fix: rabbit-core/pom.xml to reduce vulnerabilities
fix: rabbit-core/pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGAPACHEPOI-32049
- https://snyk.io/vuln/SNYK-JAVA-ORGPOSTGRESQL-173997

OHDSI/WhiteRabbit