test: add warm reuse and waitUntil test coverage, bump runtime-v8 to v0.13.4

- 6 warm reuse tests: timer/interval isolation, state persistence, response state clean, waitUntil + rejected waitUntil
- 3 waitUntil conformance tests: multiple promises, rejected promise, mix resolved/rejected
- bump runtime-v8 to v0.13.4 (timer leak fix, terminate flag fix, waitUntil rejection guard)
- bump to 0.13.7

Author: max-lt

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "openworkers-runner"
-version = "0.13.6"
+version = "0.13.7"
 edition = "2024"
 license = "MIT"
 default-run = "openworkers-runner"
@@ -55,14 +55,14 @@ sqlx = { version = "0.8.6", features = [ "runtime-tokio", "postgres", "uuid", "b
 reqwest = { version = "0.13.1", default-features = false, features = ["rustls", "json", "stream"] }
 
 # Core types
-openworkers-core = { path = "../openworkers-core", features = ["hyper"] }
+openworkers-core = { git = "https://github.com/openworkers/openworkers-core", tag = "v0.13.1", features = ["hyper"] }
 
 # Transform (TS strip + export default → globalThis.default)
 # openworkers-transform = { path = "../openworkers-transform" }
 openworkers-transform = { git = "https://github.com/openworkers/openworkers-transform", tag = "v0.1.0" }
 
 # Runtime backend (v8 only for now, others require older version of core)
-openworkers-runtime-v8 = { path = "../openworkers-runtime-v8", optional = true, features = ["ptrcomp"] }
+openworkers-runtime-v8 = { git = "https://github.com/openworkers/openworkers-runtime-v8", tag = "v0.13.4", optional = true, features = ["ptrcomp"] }
 
 # WASM runtime (optional)
 # openworkers-runtime-wasm = { path = "../openworkers-runtime-wasm", optional = true }