fix: SchemaComponentsMap bindings (#1390)

* fix: SchemaComponentsMap bindings

* chore: format fix

* chore: add changest

Author: MatanAvneri

.changeset/itchy-owls-beg.md

@@ -0,0 +1,5 @@
+---
+"swagger-typescript-api": patch
+---
+
+Fix being able to call getComponentByRef from templates

src/schema-components-map.ts

@@ -65,9 +65,9 @@ export class SchemaComponentsMap {
     );
   }
 
-  get($ref: string) {
+  get = ($ref: string) => {
     return this._data.find((c) => c.$ref === $ref) || null;
-  }
+  };
 
   // Ensure enums are at the top of components list
   enumsFirst() {