Escape ' in generated dbscheme names

`escape_name` maps `"` to `dquote` but leaves `'` untouched, so a grammar whose
node types contain a single quote generates an invalid dbscheme identifier.

Lua hits this: its `string` node has `'` as a delimiter token, and the generator
emits `@lua_string_'`, which the dbscheme parser rejects with

    ERROR: token recognition error at: '''

No shipped language contains a bare `'` in a node type, which is why this has
not surfaced before. Found while building an out-of-tree extractor.

Adds the missing mapping and a test covering both string delimiters.

Author: GiangTran-FinX

shared/tree-sitter-extractor/src/node_types.rs

@@ -386,6 +386,7 @@ fn escape_name(name: &str) -> String {
             ':' => result.push_str("colon"),
             ';' => result.push_str("semicolon"),
             '"' => result.push_str("dquote"),
+            '\'' => result.push_str("squote"),
             '*' => result.push_str("star"),
             '+' => result.push_str("plus"),
             '-' => result.push_str("minus"),
@@ -448,6 +449,14 @@ fn dbscheme_name_to_class_name(dbscheme_name: &str) -> String {
         .join("")
 }
 
+#[test]
+fn escape_name_quotes_test() {
+    // Both string delimiters need a name: a grammar whose node types contain
+    // `'` used to produce the invalid dbscheme identifier `@lang_string_'`.
+    assert_eq!("dquote", escape_name("\""));
+    assert_eq!("squote", escape_name("'"));
+}
+
 #[test]
 fn to_snake_case_test() {
     assert_eq!("ruby", to_snake_case("Ruby"));