Lamba version not created despite using PublishLambdaVersion

### Description
I am trying to implement SnapStart on two of my lambdas. It works well, until we deployed with only changes in the layers - then a new lambda version was not created.
I came across the possibility to set PublishLambdaVersion = true on the AWS::Serverless::LayerVersion resource.
The bug is that a new lambda version is not created, despite the layer version being bumped up.

In our rootstack we have two layers defined which are used by several nested stacks.
It is only 2 out of many lambdas in which we want to use SnapStart and thereby have the need for new lambda versions being created when a layer is updated.

### Steps to reproduce

Rootstack:
```
CommonLayer:
Type: AWS::Serverless::LayerVersion
Properties:
LayerName: CommonLayer
Description: Common layer
ContentUri: ../lambdas/layers/common
RetentionPolicy: Delete
PublishLambdaVersion: True

RdsSchemaLayer:
Type: AWS::Serverless::LayerVersion
Properties:
LayerName: RdsSchemaLayer
Description: RDS SQLAlchemy layer with defined schemas
ContentUri: ../lambdas/layers/rds_schema
RetentionPolicy: Delete
PublishLambdaVersion: True
```
We then have several nested stacks defined in the rootstack, fx:

```
ExampleApi:
Type: AWS::Serverless::Application
Properties:
Location: './example_api.yaml'
Parameters:
EnvPipeline: !Ref EnvPipeline
CommonLayer: !Ref CommonLayer
RdsSchemaLayer: !Ref RdsSchemaLayer
```

Inside example_api.yaml, we have the lambda defined:

```
ExampleApiLambda:
Type: AWS::Serverless::Function
Properties:
Runtime: python3.12
FunctionName: ExampleApiLambdaFastApi
SnapStart:
ApplyOn: PublishedVersions
AutoPublishAlias: SnapStart
AutoPublishAliasAllProperties: true
Handler: lambda_entry_point.handler
CodeUri: ../lambdas/example_api/
Description: "Example API lambda that runs FastAPI app"
MemorySize: 1024
Timeout: 29
Role: !Ref ExampleApiLambdaRole
Events:
ExampleApiEvent:
Type: Api
Properties:
RestApiId: !Ref ExamplePlatformApiV1
Path: /v1/example/example
Method: POST
...
Layers:
- !Ref CommonLayer
- !Ref RdsSchemaLayer
Environment:
Variables:
....
VpcConfig:
SecurityGroupIds:
- !Ref RdsLambdaSecurityGroup
SubnetIds:
- !Ref subnet1Id
- !Ref subnet2Id
- !Ref subnet3Id
```
I first deployed the stack with the above configuration.
I then made a simple change in the RdsSchemaLayer and deployed again.

### Observed result
I observe that the RdsSchemaLayer has version 624

On the lambda, no new version is created:

Version 37 (latest lambda version) is still pointing at RdsSchemaLayer version 623:

### Expected result
I expect that a new lambda version is created using RdsSchemaLayer version 624.

### Additional environment details

1. OS:
2. If using the [SAM CLI](https://github.com/aws/aws-sam-cli), `sam --version`: AWS SAM CLI 1.142.1 (deploying with Github runner https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md)
3. AWS region: eu-west-1