delete sensitive information from application-test

Author: polobence

backend/src/test/resources/application-test.properties

@@ -1,7 +1,7 @@
 # Test Database Configuration
 spring.datasource.url=jdbc:postgresql://localhost:5432/solarwatch_test
 spring.datasource.username=postgres
-spring.datasource.password=Pds56ghj
+spring.datasource.password=admin123
 spring.jpa.hibernate.ddl-auto=create-drop
 spring.jpa.show-sql=true
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect