Adapt to new Placeholder resolution API

See gh-41177

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration.java

@@ -157,6 +157,7 @@ public class DataSourceAutoConfiguration {
 					return StringUtils.hasText(environment.getProperty(DATASOURCE_URL_PROPERTY));
 				}
 				catch (IllegalArgumentException ex) {
+					// NOTE: This should be PlaceholderResolutionException
 					// Ignore unresolvable placeholder errors
 				}
 			}