[NOTICK] Add a detekt rule to catch tests with no timeout (#5959)

* [NOTICK] Add a custom detekt rule for tests with no timeout, and fix remaining missing timeouts

* [NOTICK] Add a test for custom detekt rules and tidying

* add timeout annotation to new test

Co-authored-by: Stefano Franz <roastario@gmail.com>

client/rpc/src/integration-test/kotlin/net/corda/client/rpc/CordaRPCClientTest.kt

@@ -264,7 +264,7 @@ class CordaRPCClientTest : NodeBasedTest(listOf("net.corda.finance"), notaries =
         assertThat(outOfProcessRpc.waitFor()).isZero()  // i.e. no exceptions were thrown
     }
 
-    @Test
+    @Test(timeout=300_000)
     fun `nonspecific reconnect errors dont trigger graceful reconnect`() {
         val inputJar1 = Thread.currentThread().contextClassLoader.getResourceAsStream(testJar)!!
         val inputJar2 = Thread.currentThread().contextClassLoader.getResourceAsStream(testJar)!!

client/rpc/src/integration-test/kotlin/net/corda/client/rpc/RpcCustomSerializersTest.kt

@@ -72,7 +72,7 @@ class RpcCustomSerializersTest {
         }
     }
 
-    @Test
+    @Test(timeout=300_000)
     fun `when a custom serializer is missing from the rpc client the resulting exception progagtes and client does not reconnect`() {
         driver(DriverParameters(startNodesInProcess = false, cordappsForAllNodes = listOf(enclosedCordapp()))) {
             val server = startNode(providedName = ALICE_NAME).get()