C#: JSII-Pacmak adds extra }

### Describe the bug

When we run `jsii-pacmak -v --target dotnet` in the build process of [cdktf-provider-oci](https://github.com/cdktf/cdktf-provider-oci) we run into ~50 errors across all sorts of resouces that all appear to have one or two extra `}` at the end the file.

### Expected Behavior

Compiling the bindings from the source TS correctly for C#

### Current Behavior

[This gist](https://gist.github.com/DanielMSchmidt/3dfefaeeff2c5d532ed95589db70a6b5) shows one example of a TS file and a corresponding C# file, at the very end of the C# file you can see two extra `}`.

### Reproduction Steps

- Create new project with cdktf 0.18.2 (or any recent version) and constructs installed
- [This gist](https://gist.github.com/DanielMSchmidt/3dfefaeeff2c5d532ed95589db70a6b5) Copy the TS file of the gist.
- Run pacmak against it, see the error

### Possible Solution

_No response_

### Additional Information/Context

_No response_

### SDK version used

jsii@5.2.17, jsii-pacmak@1.90.0

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

OSX Ventura & Ubuntu on GH Runner

No repository file or test is named. Reproduce the issue with jsii-pacmak -v --target dotnet using the TypeScript example from the linked gist, then trace the generated C# output and confirm that the extra closing braces are absent and the bindings compile successfully.

Written by the indexing model from the issue text.