Make link to DataSourceAutoConfiguration explicit

This commit updates DataSourceTransactionManagerAutoConfiguration to
explicitly states it should run after DataSourceAutoConfiguration.

Closes gh-44810

Author: snicoll

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2024 the original author or authors.
+ * Copyright 2012-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -48,7 +48,7 @@
  * @since 1.0.0
  */
 @AutoConfiguration(before = TransactionAutoConfiguration.class,
-		after = TransactionManagerCustomizationAutoConfiguration.class)
+		after = { DataSourceAutoConfiguration.class, TransactionManagerCustomizationAutoConfiguration.class })
 @ConditionalOnClass({ DataSource.class, JdbcTemplate.class, TransactionManager.class })
 @AutoConfigureOrder(Ordered.LOWEST_PRECEDENCE)
 @EnableConfigurationProperties(DataSourceProperties.class)