Docs: Fix build after moving SQL QA

I moved SQL's QA in #34496 to make it easier to run all of SQL tests in
one go but forgot to update the docs build. This fixes that.

docs/reference/sql/index.asciidoc

@@ -3,10 +3,10 @@
 [[xpack-sql]]
 = SQL access
 
-:sql-tests: {xes-repo-dir}/../../qa/sql
+:sql-tests: {xes-repo-dir}/../../plugin/sql/qa
 :sql-specs: {sql-tests}/src/main/resources
-:jdbc-tests: {sql-tests}/src/main/java/org/elasticsearch/xpack/qa/sql/jdbc
-:security-tests: {sql-tests}/security/src/test/java/org/elasticsearch/xpack/qa/sql/security
+:jdbc-tests: {sql-tests}/src/main/java/org/elasticsearch/xpack/sql/qa/jdbc
+:security-tests: {sql-tests}/security/src/test/java/org/elasticsearch/xpack/sql/qa/security
 :es-sql: Elasticsearch SQL
 
 [partintro]