Task::spawn always opens task dialog, doesn't spawn named task

[497e0bdf29873]

Summary

Since 0.173.8, Task::spawn always opens the task dialog instead of spawning a named task.This is after doing the suggested auto-update of keymap.json, with a configuration that used to work in earlier versions.

Steps to trigger the problem:

1. Configure a task.
2. Bind a key to the task, for example:

[
    {
        "context": "Workspace",
        "bindings": {
            "shift shift": ["task::Spawn", { "task_name": "forward_search" }],
            "f5": ["task::Spawn", { "task_name": "pdflatex_view" }],
        }
    },
]

3. Press the configured key (e.g., f5).

Actual Behavior:

Task dialog is opened.

Expected Behavior:

The named task should be run.

Zed Version and System Specs

Zed: v0.173.8 (Zed)
OS: macOS 15.2.0
Memory: 16 GiB
Architecture: aarch64

[497e0bdf29873]

Update:
Motivated by #24832, which is essentially the same issue, submitted at about the same time, the problem seems to be that also dash - is unallowed in task names now: the auto-update changed the dashes in the keymap to underscores _, but did not touch tasks tasks.json. So it seems that tasks.json should also be auto-updated, or the auto-update should actually tell what changes it made, and these task name restrictions documented.

I'm closing this to have just one issue for the problem.