fix(deps): update dependency com.google.cloud:libraries-bom to v26.68.0

Author: renovate-bot

build.gradle

@@ -78,7 +78,7 @@ dependencies {
         }
     }
     // Cloud Spanner related
-    implementation platform('com.google.cloud:libraries-bom:26.66.0')
+    implementation platform('com.google.cloud:libraries-bom:26.68.0')
     implementation("com.google.cloud:google-cloud-spanner-jdbc")
 
     // Liquibase Core - needed for testing and docker container

pom.xml

@@ -65,7 +65,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>libraries-bom</artifactId>
-        <version>26.66.0</version>
+        <version>26.68.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>