cli: ability to pass context values through file

### Describe the feature

Context variables allow passing parameters to the cdk command. But since they need to be specified individually, reruns become a challenge.
Keep track of what values have been used previously and pass them again.
If there are multiple environments it become even more challenging and tedious.

### Use Case

Reruns require me to remember and pass the same variables everytime. Also specifying each variable everytime is tedious.

### Proposed Solution

The ability to store these values in a json file and passing it to the cli would be great feature for reusability and maintenance.

`cdk deploy --context-file cdk.dev.json`
or
`cdk deploy --context-file cdk.stage.json -c "vpcEnv=qa"`

### Other Information

_No response_

### Acknowledgements

- [X] I may be able to implement this feature request
- [ ] This feature might incur a breaking change

### CDK version used

2.62.2

### Environment details (OS name and version, etc.)

MacOS Ventura