Upgrade to Hikaricp 2.7.8

Closes gh-12252

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/jdbc/DataSourcePoolMetricsAutoConfigurationTests.java

@@ -114,13 +114,13 @@ public class DataSourcePoolMetricsAutoConfigurationTests {
 	}
 
 	@Test
-	public void failureToInstrumentHikariDataSourceIsTolerated() {
+	public void hikariCanBeInstrumentedAfterThePoolHasBeenSealed() {
 		this.contextRunner.withUserConfiguration(HikariSealingConfiguration.class)
 				.run((context) -> {
 					assertThat(context).hasNotFailed();
 					context.getBean(DataSource.class).getConnection();
 					MeterRegistry registry = context.getBean(MeterRegistry.class);
-					assertThat(registry.find("hikaricp.connections").meter()).isNull();
+					assertThat(registry.find("hikaricp.connections").meter()).isNotNull();
 				});
 	}
 

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -61,7 +61,7 @@
 		<hazelcast-hibernate5.version>1.2.3</hazelcast-hibernate5.version>
 		<hibernate.version>5.2.13.Final</hibernate.version>
 		<hibernate-validator.version>6.0.7.Final</hibernate-validator.version>
-		<hikaricp.version>2.7.7</hikaricp.version>
+		<hikaricp.version>2.7.8</hikaricp.version>
 		<hsqldb.version>2.4.0</hsqldb.version>
 		<htmlunit.version>2.29</htmlunit.version>
 		<httpasyncclient.version>4.1.3</httpasyncclient.version>