feat(api): add tag filtering on the applications list endpoint (#7360)

openapi.json

@@ -19,6 +19,17 @@
                 "summary": "List",
                 "description": "List all applications.",
                 "operationId": "list-applications",
+                "parameters": [
+                    {
+                        "name": "tag",
+                        "in": "query",
+                        "description": "Filter applications by tag name.",
+                        "required": false,
+                        "schema": {
+                            "type": "string"
+                        }
+                    }
+                ],
                 "responses": {
                     "200": {
                         "description": "Get all applications.",