feat(task): support object notation, remove support for JSDocs (#26886)

This commit changes three aspects of `deno task`:
1. Tasks can now be written using object notation like so:
```jsonc
{
  "tasks": {
     "foo": "deno run foo.js",
     "bar": {
        "command": "deno run bar.js"
     }
}
```
2. Support for comments for tasks is now removed. Comments above tasks
will
no longer be printed when running `deno task`.
3. Tasks written using object notation can have "description" field that
replaces
support for comments above tasks:
```jsonc
{
  "tasks": {
     "bar": {
        "description": "This is a bar task"
        "command": "deno run bar.js"
     }
}
```
```
$ deno task
Available tasks:
- bar
    // This is a bar task
    deno run bar.js
```

Pulled most of the changes from
https://github.com/denoland/deno/pull/26467 to
support "dependencies" in tasks. Additionally some cleanup was performed
to make code easier to read.

---------

Co-authored-by: David Sherret <dsherret@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/Cargo.lock b/Cargo.lock
index eccd52fff..56d241741 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1421,9 +1421,9 @@ dependencies = [
 
 [[package]]
 name = "deno_config"
-version = "0.38.2"
+version = "0.39.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "966825073480a6ac7e01977a3879d13edc8d6ea2d65ea164b37156a5fb206e9a"
+checksum = "0a91aa99751ebe305a7edad12a3ad751f3b3b9f5ecddbfe4a0459e3cdc8493b6"
 dependencies = [
  "anyhow",
  "deno_package_json",