Solr 9.6 → 9.7 for integration tests

Author: thomascorthals

.github/workflows/run-tests.yml

@@ -51,12 +51,12 @@ jobs:
                 ref: branch_8_11
                 path: lucene-solr
 
-            - name: Checkout solr 9.6
+            - name: Checkout solr 9.7
               if: matrix.solr == 9
               uses: actions/checkout@v4
               with:
                 repository: apache/solr
-                ref: branch_9_6
+                ref: branch_9_7
                 path: lucene-solr
 
             - name: Start Solr ${{ matrix.solr }} in ${{ matrix.mode }} mode

tests/Integration/Fixtures/schema9.patch

@@ -6,8 +6,8 @@ index 190214aebad..7a76a28276a 100644
     <!-- points to the root document of a block of nested documents. Required for nested
        document support, may be removed otherwise
     -->
--   <field name="_root_" type="string" indexed="true" stored="false" docValues="false" />
-+   <field name="_root_" type="string" indexed="true" stored="true" docValues="false" />
+-   <field name="_root_" type="string" indexed="true" stored="false" />
++   <field name="_root_" type="string" indexed="true" stored="true" />
 +   <fieldType name="_nest_path_" class="solr.NestPathField" />
 +   <field name="_nest_path_" type="_nest_path_" />