"Try with example data" from iwc failures due to metadata issues

There are issues with the upload of data when using the "try with example data" form iwc.

## Issue 1

Workflow: https://iwc.galaxyproject.org/workflow/scaffolding-hic-vgp8-main/

Trying to run with example data on main. When starting the invocation, scheduling fails with the error

```
Invocation scheduling failed because an unexpected failure occurred at step 5: 'Extension 'auto' unknown, cannot use dataset collection as input'
```

Collection has format "auto"

Example invocation: https://usegalaxy.org/workflows/invocations/0d15b56dc0b2ad15

## Issue 2

Workflow: https://iwc.galaxyproject.org/workflow/assembly-hifi-hic-phasing-vgp4-main/

Error

```
Invocation scheduling failed because step 35 requires a dataset created by step 8779042, but dataset entered a failed state.
```

The first tool running on one of the tabular input fails wih the error :

```
Missing column types. In Galaxy, click the pencil icon on the history item and select the Auto-detect option to correct it. This tool can only be used with tab-delimited data
```
The input looks correct

Invocation: https://usegalaxy.org/workflows/invocations/ed11e3ad1560556e?success=true

Start with the two workflow links and the example invocations in the issue, reproducing each failure on usegalaxy.org. Inspect the example-data upload and invocation-scheduling path for the reported collection format and missing column types. Done means both workflows can be started successfully with example data without metadata-related scheduling or tool failures.

Written by the indexing model from the issue text.