Drop support for D9.5 and D10.2, only support D10.3+ and D11+.

toc_api.info.yml

@@ -2,5 +2,5 @@ name: 'TOC API'
 type: module
 description: 'API for building a a hierarchical table of contents from header tags.'
 package: 'API'
-core_version_requirement: ^9.5 || ^10.2 || ^11.0
+core_version_requirement: ^10.3 || ^11.0
 configure: entity.toc_type.collection