Revert upgrade

doc/changes/changes_2.7.5.md

@@ -16,7 +16,6 @@ This release adds log messages to allow debugging issues during import.
 #### Compile Dependency Updates
 
 * Updated `com.google.protobuf:protobuf-java:3.24.3` to `3.24.4`
-* Updated `org.apache.spark:spark-sql_2.13:3.4.1` to `3.5.0`
 
 #### Test Dependency Updates
 

pom.xml

@@ -424,7 +424,7 @@
         <dependency>
             <groupId>org.apache.spark</groupId>
             <artifactId>spark-sql_${scala.compat.version}</artifactId>
-            <version>3.5.0</version>
+            <version>3.4.1</version> <!-- Upgrading will let unit tests fail -->
             <exclusions>
                 <exclusion>
                     <groupId>org.spark-project.spark</groupId>