chore(function): add API.md changes

Author: MarlonJD

packages/backend-function/API.md

@@ -20,11 +20,11 @@ export type FunctionProps = {
     timeoutSeconds?: number;
     memoryMB?: number;
     environment?: Record<string, string | BackendSecret>;
-    runtime?: NodeVersion;
+    runtime?: RuntimeType;
 };
 
 // @public (undocumented)
-export type NodeVersion = 16 | 18 | 20;
+export type RuntimeType = "GO_1_X_PROVIDED_AL2023" | "NODEJS_16_X" | "NODEJS_18_X" | "NODEJS_20_X" | "PYTHON_3_8" | "PYTHON_3_9" | "PYTHON_3_10" | "PYTHON_3_11" | "PYTHON_3_12";
 
 // (No @packageDocumentation comment for this package)