json: Add runnable for package.json and composer.json scripts (#12285)

**Package.json**


https://github.com/zed-industries/zed/assets/62463826/f8ca12a5-1292-4465-83e1-3c2ab65f5833

**Composer.json**


https://github.com/zed-industries/zed/assets/62463826/61f9e74d-c6ed-4329-855b-d0161e0a117b

Release Notes:

- Added runnable for `package.json` and `composer.json` scripts
([#12215](https://github.com/zed-industries/zed/issues/12215)).

crates/languages/src/json/runnables.scm

@@ -0,0 +1,21 @@
+; Add support `package.json` and `composer.json` script runnable
+
+(
+    (document
+        (object
+            (pair
+                key: (string
+                    (string_content) @_name
+                    (#eq? @_name "scripts")
+                )
+                value: (object
+                    (pair
+                        key: (string (string_content) @run @script)
+                    )
+                )
+            )
+        )
+    )
+    (#set! tag package-script)
+    (#set! tag composer-script)
+)

crates/languages/src/json/tasks.json

@@ -0,0 +1,14 @@
+[
+  {
+    "label": "package script $ZED_CUSTOM_script",
+    "command": "npm run",
+    "args": ["$ZED_CUSTOM_script"],
+    "tags": ["package-script"]
+  },
+  {
+    "label": "composer script $ZED_CUSTOM_script",
+    "command": "composer",
+    "args": ["$ZED_CUSTOM_script"],
+    "tags": ["composer-script"]
+  }
+]