fix(deps): update dependency com.google.cloud:alloydb-jdbc-connector to v1.2.6 (#375)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

embedding-stores/langchain4j-community-alloydb-pg/pom.xml

@@ -68,7 +68,7 @@
         <dependency>
             <groupId>com.google.cloud</groupId>
             <artifactId>alloydb-jdbc-connector</artifactId>
-            <version>1.2.5</version>
+            <version>1.2.6</version>
             <exclusions>
                 <exclusion>
                     <groupId>com.google.code.gson</groupId>