Cannot install a specific version

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Describe the bug

When trying to install a specific version of aspire, it returns a 404 regardless of how the version is formatted.

```bash
$ ./aspire-install.sh --version "13.1.2"

Downloading from: https://ci.dot.net/public/aspire//13.1.2/aspire-cli-linux-x64-13.1.2.tar.gz
curl: (22) The requested URL returned error: 404

Error: Failed to download https://ci.dot.net/public/aspire//13.1.2/aspire-cli-linux-x64-13.1.2.tar.gz
```

### Expected Behavior

As per the documentation, (https://aspire.dev/reference/cli/install-script/) it should install the specific version of aspire.

### Steps To Reproduce

Follow the instructions in the documentation for installing a specific version.

### Exceptions (if any)

_No response_

### .NET Version info

.NET SDK:
Version: 10.0.200
Commit: 40cd698e5c
Workload version: 10.0.200-manifests.c7707153
MSBuild version: 18.3.0-release-26119-122+40cd698e5

Runtime Environment:
OS Name: ubuntu
OS Version: 24.04
OS Platform: Linux
RID: linux-x64
Base Path: /usr/share/dotnet/sdk/10.0.200/

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.
No workload sets are installed. Run "dotnet workload restore" to install a workload set.

Host:
Version: 10.0.4
Architecture: x64
Commit: 80d3e14f5e

.NET SDKs installed:
10.0.200 [/usr/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 10.0.4 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 10.0.4 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
DOTNET_GENERATE_ASPNET_CERTIFICATE [false]
DOTNET_NOLOGO [true]
DOTNET_ROLL_FORWARD [Major]
DOTNET_RUNNING_IN_CONTAINER [true]
DOTNET_SDK_VERSION [10.0.200]
DOTNET_USE_POLLING_FILE_WATCHER [true]
DOTNET_VERSION [10.0.4]

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

### Anything else?

_No response_