Upgrade to Caffeine 2.6.1

Closes gh-11539

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

@@ -33,7 +33,7 @@
 		<atomikos.version>4.0.5</atomikos.version>
 		<bitronix.version>2.1.4</bitronix.version>
 		<byte-buddy.version>1.7.9</byte-buddy.version>
-		<caffeine.version>2.6.0</caffeine.version>
+		<caffeine.version>2.6.1</caffeine.version>
 		<cassandra-driver.version>3.3.2</cassandra-driver.version>
 		<classmate.version>1.3.4</classmate.version>
 		<commons-codec.version>1.11</commons-codec.version>