aws-cdk-lib/aws-lambda: Incorrect order of operations when changing both Python version and architecture

### Describe the bug

When changing both Python runtime version and architecture, the order of operations prevents the operation from succeeding. For example, if a deployed Lambda is configured for Python 3.9 and ARM64, changing to to Python 3.7 and X86_64 fails during deploy.

### Expected Behavior

Changing the runtime and architecture should succeed when deploying.

### Current Behavior

During `cdk deploy`, the Lambda function update fails with the following error message:

`ExampleStack | 0/3 | 4:44:26 PM | UPDATE_FAILED | AWS::Lambda::Function | MyFunction (MyFunction3BAA72D1) Resource handler returned message: "Runtime python3.7 does not support the following architectures [arm64]. Please select different architectures from [x86_64] or select a different runtime. (Service: Lambda, Status Code: 400, Request ID: example5-9228-4208-b024-0dd9e9a9b03a)" (RequestToken: example1-f7ef-5669-2ab1-5ed0b6c59b30, HandlerErrorCode: InvalidRequest) `

### Reproduction Steps

Given the following already-deployed code:

```
import * as lambda from 'aws-cdk-lib/aws-lambda';

const myFunction = new lambda.Function(this, 'MyFunction', {
...
runtime: lambda.Runtime.PYTHON_3_9,
architecture: lambda.Architecture.ARM64,
...
}
```

Change the runtime and architecture configuration as follows:

```
runtime: lambda.Runtime.PYTHON_3_7,
architecture: lambda.Architecture.X86_64,
```

Running `cdk diff` at this point will show that both runtime and architecture will be updated. Performing `cdk deploy` causes an error because the runtime is changed before the architecture, and the 3.7 runtime does not support ARM64.

### Possible Solution

Change the order of operations to update the architecture before the runtime.

### Additional Information/Context

_No response_

### CDK CLI Version

2.92.0 (build bf62e55)

### Framework Version

_No response_

### Node.js Version

v18.17.1

### OS

Windows 10

### Language

Typescript

### Language Version

_No response_

### Other information

_No response_

Start in aws-cdk-lib/aws-lambda and trace the resource update emitted for runtime and architecture; use cdk diff and cdk deploy with the supplied Python 3.9/ARM64 to Python 3.7/X86_64 transition. Done means the architecture change is applied before the incompatible runtime change and deployment succeeds.

Written by the indexing model from the issue text.