This moves from throwing an error when an app is rejected due to unmet
requirements (because of contracts) to storing the target with a
`rejected` flag on the database.
The application manager filters rejected apps when calculating steps to
prevent them from affecting the current state. The state engine uses the
rejection info to generate the state report.
Change-type: minor
The following pattern
```ts
async function longRunning() {
// do something
await setTimeout(delay);
await longRunning();
}
```
Is regularly used for long running operations on the supervisor (e.g.
polling target state). We have
recently discovered that this pattern can slowly leak memory as it
essentially creates an infinite promise chain. Using `void longRunning()` breaks
the chain and avoids the issue.
This commit fixes all those instances where the pattern was used.
Change-type: patch
