skaffold render with Kustomize and --set fails on ConfigMap generation

### Expected behavior

#### Issue 1

A `kustomization.yaml` contains a configuration to generate a ConfigMap from a `*.env` file, just like this:
```yaml
configMapGenerator:
- name: foobar-config
envs:
- local.env
```

I would expect the following output when running `skaffold render -p issue1 --set="foo=bar"`:
```yaml
apiVersion: v1
data:
NAME: foobar
kind: ConfigMap
metadata:
name: foobar-config-hbtb84cg8d
```

#### Issue 2

A`kustomization.yaml` contains a configuration to generate a ConfigMap including a file `application-local.yaml`, but rename the key to `application.yaml`, just like this:
```yaml
configMapGenerator:
- name: foobar-config
files:
- application.yaml=application-foobar.yaml
```

I would expect the following output when running `skaffold render -p issue2 --set="foo=bar"`:
```yaml
apiVersion: v1
data:
application.yaml: 'name: foobar'
kind: ConfigMap
metadata:
name: foobar-config-m896ch6d5m
```

### Actual behavior

#### Issue 1

If I run `skaffold render -p issue1 --set="foo=bar"`, I get the following error:
```bash
running [kustomize build /var/folders/dy/qslwfy7n0jz3wp1gjxs3m32h0000gp/T/4251885249/Users/foobar/src/test/skaffold-set-issue/src/foobar/kustomize/overlays/issue1]
- stdout: ""
- stderr: "Error: loading KV pairs: env source files: [local.env]: evalsymlink failure on '/private/var/folders/dy/qslwfy7n0jz3wp1gjxs3m32h0000gp/T/4251885249/Users/foobar/src/test/skaffold-set-issue/src/foobar/kustomize/overlays/issue1/local.env' : lstat /private/var/folders/dy/qslwfy7n0jz3wp1gjxs3m32h0000gp/T/4251885249/Users/foobar/src/test/skaffold-set-issue/src/foobar/kustomize/overlays/issue1/local.env: no such file or directory\n"
- cause: exit status 1
```

If I just run `skaffold render -p issue1`, everything is as expected.

#### Issue 2

If I run `skaffold render -p issue2 --set="foo=bar"`, I get the following error:
```bash
open /Users/foobar/src/test/skaffold-set-issue/src/foobar/kustomize/overlays/issue2/application.yaml=application-foobar.yaml: no such file or directory
```

If I just run `skaffold render -p issue2`, everything is as expected.

### Information

- Skaffold version: v2.10.1
- Operating system: macOS 14.3 (Build 23D56)
- Installed via: homebrew
- Contents of skaffold.yaml: https://raw.githubusercontent.com/hjestaedt-flyr/skaffold-issue/main/src/foobar/skaffold.yaml

```yaml
apiVersion: skaffold/v4beta9
kind: Config

metadata:
name: foobar

build:
artifacts:
- image: examples/foobar
context: .

profiles:
- name: issue1
manifests:
kustomize:
paths:
- kustomize/overlays/issue1/

- name: issue2
manifests:
kustomize:
paths:
- kustomize/overlays/issue2/
```

### Steps to reproduce the behavior

Checkout https://github.com/hjestaedt-flyr/skaffold-issue and run:

- `skaffold render -p issue1 --set="foo=bar"`
- `skaffold render -p issue2 --set="foo=bar"`

Please let me know, if you want me to split this into two issues.