Files are synched more times than needed when running `skaffold dev`

When running `skaffold dev` with the sync feature enable, in a project with **N** different configs (different `skaffold.yaml` files), every time skaffold syncs a file, it will try to do it **N** times: it will look for the corresponding image to sync the file **N** times.

### Expected behavior
A file sync, in a multi config project, running `skaffold dev`, should look for the image to sync the file only once, independently of how many configs we have in the project.

### Actual behavior
Instead, when a file sync is triggered, skaffold will try to find the corresponding image more than once, running the logic more times than needed.

### Information

- Skaffold version: v1.38.0-63-ga1f4e4b85-dirty
- Operating system: MacOS Monterey
- Installed via: Local build using the `main` branch
- Contents of skaffold.yaml:

We can use the example project [multi-config-microservices](https://github.com/GoogleContainerTools/skaffold/tree/main/examples/multi-config-microservices), enabling the `sync` feature:

`leeroy-app` skaffold.yaml file with `sync`:
```yaml
apiVersion: skaffold/v2beta28
kind: Config
metadata:
name: app-config
requires:
- path: ../base
build:
artifacts:
- image: leeroy-app
sync:
infer:
- "**/*.go"
requires:
- image: base
alias: BASE
deploy:
kubectl:
manifests:
- kubernetes/*
portForward:
- resourceType: deployment
resourceName: leeroy-app
port: http
localPort: 9001
```

`leeroy-web` skaffold.yaml file with `sync`:
```yaml
apiVersion: skaffold/v2beta28
kind: Config
metadata:
name: web-config
requires:
- path: ../base
build:
artifacts:
- image: leeroy-web
sync:
infer:
- "**/*.go"
requires:
- image: base
alias: BASE
deploy:
kubectl:
manifests:
- kubernetes/*
portForward:
- resourceType: deployment
resourceName: leeroy-web
port: 8080
localPort: 9000
```
The other yaml files in the example don't need a change.

### Steps to reproduce the behavior

1. Open the [multi-config-microservices](https://github.com/GoogleContainerTools/skaffold/tree/main/examples/multi-config-microservices) example
2. Modify the `skaffold.yaml` files listed above to enable the sync feature
3. Check the `for`loop in:
https://github.com/GoogleContainerTools/skaffold/blob/34f48f7f60ab583d49777caf14802200e39035b6/pkg/skaffold/sync/syncer_mux.go#L28-L34
4. Run `skaffold dev` in the project
5. The `for` loop will try to find the proper image two times, even when it is not necessary